publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
|---|---|---|---|
2013-08-17 | Thickness and power dependence of the spin-pumping effect in Y3Fe5O12/Pt heterostructures measured by the inverse spin Hall effect | The dependence of the spin-pumping effect on the yttrium iron garnet
(Y3Fe5O12, YIG) thickness detected by the inverse spin Hall effect (ISHE) has
been investigated quantitatively. Due to the spin-pumping effect driven by the
magnetization precession in the ferrimagnetic insulator YIG film a
spin-polarized electron cur... | 1308.3787v1 |
2014-02-15 | Measurement of the intrinsic damping constant in individual nanodisks of YIG and YIG{\textbar}Pt | We report on an experimental study on the spin-waves relaxation rate in two
series of nanodisks of diameter $\phi=$300, 500 and 700~nm, patterned out of
two systems: a 20~nm thick yttrium iron garnet (YIG) film grown by pulsed laser
deposition either bare or covered by 13~nm of Pt. Using a magnetic resonance
force micr... | 1402.3630v1 |
2014-08-13 | High Cooperativity Cavity QED with Magnons at Microwave Frequencies | Using a sub-millimetre sized YIG (Yttrium Iron Garnet) sphere mounted in a
magnetic field-focusing cavity, we demonstrate an ultra-high cooperativity of
$10^5$ between magnon and photon modes at millikelvin temperatures and
microwave frequencies. The cavity is designed to act as a magnetic dipole by
using a novel multi... | 1408.2905v3 |
2014-08-25 | Measurements of the exchange stiffness of YIG films by microwave resonance techniques | Measurements of the exchange stiffness $D$ and the exchange constant $A$ of
Yttrium Iron Garnet (YIG) films are presented. The YIG films with thicknesses
from 0.9 $\mu$m to 2.6 $\mu$m were investigated with a microwave setup in a
wide frequency range from 5 to 40 GHz. The measurements were performed when the
external s... | 1408.5772v1 |
2014-09-19 | Study of strong photon-magnon coupling in a YIG-film split-ring resonant system | By using the stripline Microwave Vector Network Analyzer Ferromagnetic
Resonance and Pulsed Inductive Microwave Magnetometry spectroscopy techniques,
we study a strong coupling regime of magnons to microwave photons in the planar
geometry of a lithographically formed split-ring resonator (SRR) loaded by a
single-crysta... | 1409.5499v1 |
2015-02-15 | Redefinition of spin Hall magnetoresistance | Using a multi-conduction-channel model, we redefined the micromechanism of
spin Hall magnetoresistance (SMR). Four conduction channels are created by spin
accumulation of nonpolarized electron flow at top, bottom, left and right
interfaces of the film sample, which corresponds to different resistance states
of polarize... | 1502.04288v1 |
2015-03-20 | Control of spin current by a magnetic YIG substrate in NiFe/Al nonlocal spin valves | We study the effect of a magnetic insulator (Yttrium Iron Garnet - YIG)
substrate on the spin transport properties of Ni$_{80}$Fe$_{20}$/Al nonlocal
spin valve (NLSV) devices. The NLSV signal on the YIG substrate is about 2 to 3
times lower than that on a non magnetic SiO$_2$ substrate, indicating that a
significant fr... | 1503.06108v1 |
2015-03-25 | Rigorous numerical study of strong microwave photon-magnon coupling in all-dielectric magnetic multilayers | We demonstrate theoretically a strong local enhancement of the intensity of
the in-plane microwave magnetic field in multilayered structures made from a
magneto-insulating yttrium iron garnet (YIG) layer sandwiched between two
non-magnetic layers with a high dielectric constant matching that of YIG. The
enhancement is ... | 1503.07282v1 |
2015-04-10 | Long range pure magnon spin diffusion observed in a non-local spin-Seebeck geometry | The spin diffusion length for thermally excited magnon spins is measured by
utilizing a non-local spin-Seebeck effect measurement. In a bulk single crystal
of yttrium iron garnet (YIG) a focused laser thermally excites magnon spins.
The spins diffuse laterally and are sampled using a Pt inverse spin Hall effect
detecto... | 1504.02808v2 |
2015-08-19 | Independent tuning of electronic properties and induced ferromagnetism in topological insulators with heterostructure approach | The quantum anomalous Hall effect (QAHE) has been recently demonstrated in
Cr- and V-doped three-dimensional topological insulators (TIs) at temperatures
below 100 mK. In those materials, the spins of unfilled d-electrons in the
transition metal dopants are exchange coupled to develop a long-range
ferromagnetic order, ... | 1508.04719v1 |
2015-08-30 | Spin-transfer torque based damping control of parametrically excited spin waves in a magnetic insulator | The damping of spin waves parametrically excited in the magnetic insulator
Yttrium Iron Garnet (YIG) is controlled by a dc current passed through an
adjacent normal-metal film. The experiment is performed on a macroscopically
sized YIG(100nm)/Pt(10nm) bilayer of 4x2 mm^2 lateral dimensions. The spin-wave
relaxation fre... | 1508.07517v1 |
2016-01-08 | Magnons and Phonons Optically Driven Out of Local Equilibrium in a Magnetic Insulator | Magnons are the energy quanta of fundamental spin excitations, namely spin
waves, and they can make a considerable contribution to energy transport in
some magnetic materials in a similar manner as lattice vibration waves or
phonons. The coupling and possible non-equilibrium between magnons and other
energy carriers ha... | 1601.01982v3 |
2016-01-21 | Detection of spin pumping from YIG by spin-charge conversion in a Au/Ni$_{80}$Fe$_{20}$ spin-valve structure | Many experiments have shown the detection of spin-currents driven by
radio-frequency spin pumping from yttrium iron garnet (YIG), by making use of
the inverse spin-Hall effect, which is present in materials with strong
spin-orbit coupling, such as Pt. Here we show that it is also possible to
directly detect the resonan... | 1601.05605v1 |
2016-04-29 | Spin Seebeck effect through antiferromagnetic NiO | We report temperature-dependent spin-Seebeck measurements on Pt/YIG bilayers
and Pt/NiO/YIG trilayers, where YIG (Yttrium iron garnet, Y$_3$Fe$_5$O$_{12}$)
is an insulating ferrimagnet and NiO is an antiferromagnet at low temperatures.
The thickness of the NiO layer is varied from 0 to 10 nm. In the Pt/YIG
bilayers, th... | 1604.08659v2 |
2016-08-16 | Probing current-induced magnetic fields in Au|YIG heterostructure with low-energy muon spectroscopy | We investigated the depth dependence of current-induced magnetic fields in a
bilayer of a normal metal (Au) and a ferrimagnetic insulator (Yttrium Iron
Garnet - YIG) by using low energy muon spectroscopy (LE-muSR). This allows us
to explore how these fields vary from the Au surface down to the buried Au|YIG
interface, ... | 1608.04584v1 |
2016-10-28 | Insulating nanomagnets driven by spin torque | Magnetic insulators, such as yttrium iron garnet (Y$_3$Fe$_5$O$_{12}$), are
ideal materials for ultra-low power spintronics applications due to their low
energy dissipation and efficient spin current generation and transmission.
Recently, it has been realized that spin dynamics can be driven very
effectively in microme... | 1610.09360v1 |
2016-12-22 | Imaging Magnetization Structure and Dynamics in Ultrathin YIG/Pt Bilayers with High Sensitivity Using the Time-Resolved Longitudinal Spin Seebeck Effect | We demonstrate an instrument for time-resolved magnetic imaging that is
highly sensitive to the in-plane magnetization state and dynamics of thin-film
bilayers of yttrium iron garnet (Y3Fe5O12,YIG)/Pt: the time-resolved
longitudinal spin Seebeck (TRLSSE) effect microscope. We detect the local,
in-plane magnetic orienta... | 1612.07610v2 |
2017-01-25 | Hybrid nanodiamond-YIG systems for efficient quantum information processing and nanoscale sensing | The nitrogen-vacancy (NV) center in diamond has been extensively studied in
recent years for its remarkable quantum coherence properties that make it an
ideal candidate for room temperature quantum computing and quantum sensing
schemes. However, these schemes rely on spin-spin dipolar interactions, which
require the NV... | 1701.07401v1 |
2017-02-17 | Spin conductance of YIG thin films driven from thermal to subthermal magnons regime by large spin-orbit torque | We report a study on spin conductance in ultra-thin films of Yttrium Iron
Garnet (YIG), where spin transport is provided by propagating spin waves, that
are generated and detected by direct and inverse spin Hall effects in two Pt
wires deposited on top. While at low current the spin conductance is dominated
by transpor... | 1702.05226v3 |
2017-04-20 | Coupled mode theory for the acoustic wave and spin wave interaction in the magphonic crystals: Propagating magnetoelastic waves | We have investigated co-directional and contra-directional couplings between
spin wave and acoustic wave in one-dimensional periodic structure (magphonic
crystal). The system consists of two ferromagnetic layers alternating in space.
We have taken into consideration materials commonly used in magnonics: yttrium
iron ga... | 1704.06118v1 |
2017-06-09 | Negative spin Hall magnetoresistance of Pt on the bulk easy-plane antiferromagnet NiO | We report on spin Hall magnetoresistance (SMR) measurements of Pt Hall bars
on the antiferromagnetic NiO(111) single crystal. An SMR with a sign opposite
of conventional SMR is observed over a wide range of temperatures as well as
magnetic fields stronger than 0.25T. The negative sign of the SMR can be
explained by the... | 1706.03004v1 |
2017-06-16 | Long-distance spin transport in a disordered magnetic insulator | Spin transport through magnetic insulators via magnons has recently been
explored for a growing variety of magnetic systems with long-range order and
well-understood spin excitation spectra. Here we show dramatic effects of spin
transport through an amorphous magnetic insulator, which is both magnetically
and structura... | 1706.05196v1 |
2017-08-04 | Quarter-Flux Hofstadter Lattice in Qubit-Compatible Microwave Cavity Array | Topological- and strongly-correlated- materials are exciting frontiers in
condensed matter physics, married prominently in studies of the fractional
quantum hall effect [1]. There is an active effort to develop synthetic
materials where the microscopic dynamics and ordering arising from the
interplay of topology and in... | 1708.01651v2 |
2017-08-06 | Electric-field-induced extremely large change in resistance in graphene ferromagnets | A colossal magnetoresistance ($\sim 100\times10^3\%$) and an extremely large
magnetoresistance ($\sim 1\times10^6\%$) have been previously explored in
manganite perovskites and Dirac materials, respectively. However, the
requirement of an extremely strong magnetic field (and an extremely low
temperature) makes them not... | 1708.01858v2 |
2017-09-03 | Femtosecond formation dynamics of the spin Seebeck effect revealed by terahertz spectroscopy | Understanding the transfer of spin angular momentum is essential in modern
magnetism research. A model case is the generation of magnons in magnetic
insulators by heating an adjacent metal film. Here, we reveal the initial steps
of this spin Seebeck effect with <27fs time resolution using terahertz
spectroscopy on bila... | 1709.00768v5 |
2017-09-06 | Complex THz and DC inverse spin Hall effect in YIG/Cu$_{1-x}$Ir$_{x}$ bilayers across a wide concentration range | We measure the inverse spin Hall effect of Cu$_{1-x}$Ir$_{x}$ thin films on
yttrium iron garnet over a wide range of Ir concentrations ($0.05 \leqslant x
\leqslant 0.7$). Spin currents are triggered through the spin Seebeck effect,
either by a DC temperature gradient or by ultrafast optical heating of the
metal layer. ... | 1709.01890v1 |
2017-09-19 | Criteria for accurate determination of the magnon relaxation length from the nonlocal spin Seebeck effect | The nonlocal transport of thermally generated magnons not only unveils the
underlying mechanism of the spin Seebeck effect, but also allows for the
extraction of the magnon relaxation length ($\lambda_m$) in a magnetic
material, the average distance over which thermal magnons can propagate. In
this study, we experiment... | 1709.06321v1 |
2017-10-07 | Dissecting spin-phonon equilibration in ferrimagnetic insulators by ultrafast lattice excitation | To gain control over magnetic order on ultrafast time scales, a fundamental
understanding of the way electron spins interact with the surrounding crystal
lattice is required. However, measurement and analysis even of basic collective
processes such as spin-phonon equilibration have remained challenging. Here, we
direct... | 1710.02700v2 |
2017-11-21 | Ionic Modulation of Interfacial Magnetism through Electrostatic Doping in Pt/YIG bilayer heterostructure | Voltage modulation of yttrium iron garnet (YIG) with compactness, high speed
response, energy efficiency and both practical/theoretical siginificances can
be widely applied to various YIG based spintronics such as spin Hall, spin
pumping, spin Seeback effects. Here we initial an ionic modulation of
interfacial magnetis... | 1711.07610v3 |
2017-11-27 | Cavity Magnon Polaritons with Lithium Ferrite and 3D Microwave Resonators at milli-Kelvin Temperatures | Single crystal Lithium Ferrite (LiFe) spheres of sub-mm dimension are
examined at mK temperatures, microwave frequencies and variable DC magnetic
field, for use in hybrid quantum systems and condensed matter and fundamental
physics experiments. Strong coupling regimes of the photon-magnon interaction
(cavity magnon pol... | 1711.09980v2 |
2017-12-12 | Microwave to optical photon conversion by means of travelling-wave magnons in YIG films | In this work we study theoretically the efficiency of a travelling magnon
based microwave to optical photon converter for applications in Quantum
Information (QI). The converter employs an epitaxially grown yttrium iron
garnet (YIG) film as the medium for propagation of travelling magnons (spin
waves). The conversion i... | 1712.04304v2 |
2017-12-21 | Exchange-torque-induced excitation of perpendicular standing spin waves in nanometer-thick YIG films | Spin waves in ferrimagnetic yttrium iron garnet (YIG) films with ultralow
magnetic damping are relevant for magnon-based spintronics and low-power
wave-like computing. The excitation frequency of spin waves in YIG is rather
low in weak external magnetic fields because of its small saturation
magnetization, which limits... | 1712.08204v1 |
2018-01-12 | Spin-Hall-Active Platinum Thin Films Grown Via Atomic Layer Deposition | We study the magnetoresistance of yttrium iron garnet/Pt heterostructures in
which the Pt layer was grown via atomic layer deposition (ALD).
Magnetotransport experiments in three orthogonal rotation planes reveal the
hallmark features of spin Hall magnetoresistance. We estimate the spin
transport parameters by comparin... | 1801.04041v1 |
2018-08-17 | Temperature Dependence of Magnetic Properties of an 18-nm-thick YIG Film Grown by Liquid Phase Epitaxy: Effect of a Pt Overlayer | Liquid phase epitaxy of an 18 nm thick Yttrium Iron garnet (YIG) film is
achieved. Its magnetic properties are investigated in the 100 -- 400 K
temperature range, as well as the influence of a 3 nm thick Pt overlayer on
them. The saturation magnetization and the magnetocrystalline cubic anisotropy
of the bare YIG film ... | 1808.05785v2 |
2018-10-05 | Magnon contribution to unidirectional spin Hall magnetoresistance | We develop a model for the magnonic contribution to the unidirectional spin
Hall magnetoresistance (USMR) of heavy metal/ferromagnetic insulator bilayer
films. We show that diffusive transport of Holstein-Primakoff magnons leads to
an accumulation of spin near the bilayer interface, giving rise to a
magnoresistance whi... | 1810.02610v2 |
2018-10-16 | Spin-wave-induced lateral temperature gradient in a YIG thin film/GGG system excited in an ESR cavity | Lateral thermal gradient of an yttrium iron garnet (YIG) film under the
microwave application in the cavity of the electron spin resonance system (ESR)
was measured at room temperature by fabricating a Cu/Sb thermocouple onto it.
To date, thermal transport in YIG films caused by the Damon-Eshbach mode (DEM)
- the unidi... | 1810.06875v1 |
2018-10-16 | Spin-torque oscillation in a magnetic insulator probed by a single-spin sensor | Coherent, self-sustained oscillation of magnetization in spin-torque
oscillators (STOs) is a promising source for on-chip, nanoscale generation of
microwave magnetic fields. Such fields could be used for local excitation of
spin-wave resonances, control of spin qubits, and studies of paramagnetic
resonance. However, lo... | 1810.07306v1 |
2018-10-28 | Magnetic Resonance in Defect Spins mediated by Spin Waves | In search of two level quantum systems that implement a qubit, the
nitrogen-vacancy (NV) center in diamond has been intensively studied for years.
Despite favorable properties such as remarkable defect spin coherence times,
the addressability of NV centers raises some technical issues. The coupling of
a single NV cente... | 1810.11841v1 |
2018-11-29 | Effect of YIG Nanoparticle Size and Clustering in Proximity-Induced Magnetism in Graphene/YIG Composite Probed with Magnetoimpedance Sensors: Towards Improved Functionality, Sensitivity and Proximity Detection | Proximity-induced magnetism (PIM) in graphene (Gr) adjacent to magnetic
specimen has raised great fundamental interests. The subject is under debate
and yet no application is proposed and granted. In this paper, toward
accomplishment of fundamental facts, we first explore the effect of particle
size and clustering in t... | 1811.12317v2 |
2018-11-29 | High Saturation Magnetization, Low Coercivity and Fine YIG Nanoparticles Prepared by Modifying Co-Precipitation Method | Nanoparticles with their specific properties newly have drawn a great deal of
attention of researchers [1-3]Yttrium iron Garnet magnetic nanoparticles
(YIG-NPs) are promising materials with novel applications in microwave,
spintronics, magnonics, and magneto-optical devices. However, achieving stable
and remarkable mag... | 1811.12511v1 |
2018-12-02 | Direct detection of induced magnetic moment and efficient spin-to-charge conversion in graphene/ferromagnetic structures | This article shows that the spin-to-charge current conversion in single-layer
graphene (SLG) by means of the inverse Rashba-Edelstein effect (IREE) is made
possible with the integration of this remarkable 2D-material with the unique
ferrimagnetic insulator yttrium iron garnet (YIG = $Y_{3}Fe_{5}O_{12}$) as well
as with... | 1812.00455v1 |
2019-01-07 | Abnormal anti-crossing effect in photon-magnon coupling | We report the experimental demonstration of an abnormal, opposite
anti-crossing effect in a photon-magnon-coupled system that consists of an
Yttrium Iron Garnet film and an inverted pattern of split-ring resonator
structure (noted as ISRR) in a planar geometry. It is found that the normal
shape of anti-crossing dispers... | 1901.01729v2 |
2019-02-18 | Coherent control of magnon radiative damping with local photon states | The collective excitation of ordered spins, known as spin waves or magnons,
can in principle radiate by emitting travelling photons to an open system when
decaying to the ground state. However, in contrast to the electric dipoles,
magnetic dipoles contributed by magnons are more isolated from electromagnetic
environmen... | 1902.06795v2 |
2019-03-02 | Excitation of unidirectional exchange spin waves by a nanoscale magnetic grating | Magnon spintronics is a prosperous field that promises beyond-CMOS technology
based on elementary excitations of the magnetic order that act as information
carriers for future computational architectures. Unidirectional propagation of
spin waves is key to the realization of magnonic logic devices. However,
previous eff... | 1903.00638v1 |
2019-03-10 | Magnons at low excitations: Observation of incoherent coupling to a bath of two-level-systems | Collective magnetic excitation modes, magnons, can be coherently coupled to
microwave photons in the single excitation limit. This allows for access to
quantum properties of magnons and opens up a range of applications in quantum
information processing, with the intrinsic magnon linewidth representing the
coherence tim... | 1903.03981v3 |
2019-05-29 | A magnonic directional coupler for integrated magnonic half-adders | Magnons, the quanta of spin waves, could be used to encode information in
beyond-Moore computing applications, and magnonic device components, including
logic gates, transistors, and units for non-Boolean computing, have already
been developed. Magnonic directional couplers, which can function as circuit
building block... | 1905.12353v3 |
2019-12-01 | Differences in the magnon diffusion length for electrically and thermally driven magnon currents in Y$_3$Fe$_5$O$_{12}$ | Recent demonstration of efficient transport and manipulation of spin
information by magnon currents have opened exciting prospects for processing
information in devices. Magnon currents can be driven both electrically and
thermally, even in magnetic insulators, by applying charge currents in an
adjacent metal layer. Ea... | 1912.00490v2 |
2020-01-31 | Temperature dependence of spin pinning and spin-wave dispersion in nanoscopic ferromagnetic waveguides | The field of magnonics attracts significant attention due to the possibility
of utilizing information coded into the spin-wave phase or amplitude to perform
computation operations on the nanoscale. Recently, spin waves were investigated
in Yttrium Iron Garnet (YIG) waveguides with widths ranging down to 50 nm and
aspec... | 2002.00003v1 |
2020-02-18 | Mapping the intrinsic photocurrent streamlines through micromagnetic heterostructure devices | Like air flowing over a wing, optimizing the flow of electronic charge is
essential to the operation of nanoscale devices. Unfortunately, the delicate
interplay of charge, spin, and heat in complex devices has precluded detailed
imaging of charge flow. Here, we report on the visualization of intrinsic
charge current st... | 2002.07902v3 |
2020-02-19 | Manipulation of coupling and magnon transport in magnetic metal-insulator hybrid structures | Ferromagnetic metals and insulators are widely used for generation, control
and detection of magnon spin signals. Most magnonic structures are based
primarily on either magnetic insulators or ferromagnetic metals, while
heterostructures integrating both of them are less explored. Here, by
introducing a Pt/yttrium iron ... | 2002.08266v1 |
2020-02-27 | High-temperature Anomalous Hall Effect in Transition Metal Dichalcogenide-Ferromagnetic Insulator Heterostructure | Integration of transition metal dichalcogenides (TMDs) on ferromagnetic
materials (FM) may yield fascinating physics and promise for electronics and
spintronic applications. In this work, high-temperature anomalous Hall effect
(AHE) in the TMD ZrTe2 thin film using heterostructure approach by depositing
it on ferrimagn... | 2002.12068v1 |
2020-03-23 | Physical realization of complex dynamical pattern formation in magnetic active feedback rings | We report the clean experimental realization of cubic-quintic complex
Ginzburg-Landau physics in a single driven, damped system. Four numerically
predicted categories of complex dynamical behavior and pattern formation are
identified for bright and dark solitary waves propagating around an active
magnetic thin film-bas... | 2003.10541v2 |
2020-05-18 | The Einstein - de Haas effect at radio frequencies in and near magnetic equilibrium | The Einstein-de Haas (EdH) effect and its reciprocal the Barnett effect are
fundamental to magnetism and uniquely yield measures of the ratio of magnetic
moment to total angular momentum. These effects, small and generally difficult
to observe, are enjoying a resurgence of interest as contemporary techniques
enable new... | 2005.08406v1 |
2020-05-20 | Controlling the propagation of dipole-exchange spin waves using local inhomogeneity of the anisotropy | Spin waves are promising candidates to carry, transport, and process
information. Controlling the propagation characteristics of spin waves in
magnetic materials is an essential ingredient for designing spin-wave based
computing architectures. Here, we study the influence of surface
inhomogeneities on the spin-wave sig... | 2005.09965v2 |
2020-07-31 | Manipulating the photonic Hall effect with hybrid Mie-exciton resonances | We examine the far-field optical response, under-plane wave excitation in the
presence of a static magnetic field, of core-shell nanoparticles involving a
gyroelectric component, either as the inner or the outer layer, through
analytic calculations based on appropriately extended Mie theory. We focus on
absorption and ... | 2007.16062v2 |
2020-12-01 | Towards a quantum interface between spin waves and paramagnetic spin baths | Spin waves have risen as promising candidate information carriers for the
next generation of information technologies. Recent experimental demonstrations
of their detection using electron spins in diamond pave the way towards
studying the back-action of a controllable paramagnetic spin bath on the spin
waves. Here, we ... | 2012.00540v1 |
2021-02-26 | Control of the Bose-Einstein Condensation of Magnons by the Spin-Hall Effect | Previously, it has been shown that rapid cooling of yttrium-iron-garnet
(YIG)/platinum (Pt) nano structures, preheated by an electric current sent
through the Pt layer, leads to overpopulation of a magnon gas and to subsequent
formation of a Bose-Einstein condensate (BEC) of magnons. The spin Hall effect
(SHE), which c... | 2102.13481v2 |
2021-04-16 | Implementing a magnonic time-delay reservoir computer model | Recently we demonstrated experimentally that microwave oscillators based on
the time delay feedback provided by traveling spin waves could operate as
reservoir computers. In the present paper, we extend this concept by adding the
feature of time multiplexing made available by the large propagation
times/distances of tr... | 2104.07879v1 |
2021-04-16 | Strong magnon-photon coupling with chip-integrated YIG in the zero-temperature limit | The cross-integration of spin-wave and superconducting technologies is a
promising method for creating novel hybrid devices for future information
processing technologies to store, manipulate, or convert data in both classical
and quantum regimes. Hybrid magnon-polariton systems have been widely studied
using bulk Yttr... | 2104.08068v3 |
2021-08-25 | Quantum network with magnonic and mechanical nodes | A quantum network consisting of magnonic and mechanical nodes connected by
light is proposed. Recent years have witnessed a significant development in
cavity magnonics based on collective spin excitations in ferrimagnetic
crystals, such as yttrium iron garnet (YIG). Magnonic systems are considered to
be a promising bui... | 2108.11156v3 |
2021-12-21 | Fast long-wavelength exchange spin waves in partially-compensated Ga:YIG | Spin waves in yttrium iron garnet (YIG) nano-structures attract increasing
attention from the perspective of novel magnon-based data processing
applications. For short wavelengths needed in small-scale devices, the group
velocity is directly proportional to the spin-wave exchange stiffness constant
$\lambda_\mathrm{ex}... | 2112.11348v1 |
2022-01-23 | Squeezed driving induced entanglement and squeezing among cavity modes and magnon mode in a magnon-cavity QED system | We propose a scheme to generate entanglement between two cavity modes and
squeeze magnon mode in a magnon-cavity QED system, where the two microwave
cavity modes are coupled with a massive yttrium iron garnet (YIG) sphere
through magnetic dipole interaction. The nonlinearity used in our system
originates from a squeeze... | 2201.09154v1 |
2022-01-26 | Multi-band Bose-Einstein condensate at four-particle scattering resonance | Superfluidity and superconductivity are macroscopic manifestations of quantum
mechanics, which have fascinated scientists since their discoveries roughly a
century ago. Ever since the initial theories of such quantum fluids were
formulated, there has been speculation as to the possibility of multi-component
quantum ord... | 2201.11043v1 |
2022-02-25 | Direct probing of strong magnon-photon coupling in a planar geometry | We demonstrate direct probing of strong magnon-photon coupling using
Brillouin light scattering spectroscopy in a planar geometry. The magnonic
hybrid system comprises a split-ring resonator loaded with epitaxial yttrium
iron garnet thin films of 200 nm and 2.46 $\mu$m thickness. The Brillouin light
scattering measurem... | 2202.12696v1 |
2022-05-27 | Magnonic Casimir Effect in Ferrimagnets | Quantum fluctuations are the key concepts of quantum mechanics. Quantum
fluctuations of quantum fields induce a zero-point energy shift under spatial
boundary conditions. This quantum phenomenon, called the Casimir effect, has
been attracting much attention beyond the hierarchy of energy scales, ranging
from elementary... | 2205.13802v3 |
2022-06-27 | Thermal spin current generation in the multifunctional ferrimagnet Ga$_{0.6}$Fe$_{1.4}$O$_{3}$ | In recent years, multifunctional materials have attracted increasing interest
for magnetic memories and energy harvesting applications. Magnetic insulating
materials are of special interest for this purpose, since they allow the design
of more efficient devices due to the lower Joule heat losses. In this context,
Ga$_{... | 2206.13426v2 |
2022-08-29 | Confinement of Bose-Einstein magnon condensates in adjustable complex magnetization landscapes | Coherent wave states such as Bose-Einstein condensates (BECs), which
spontaneously form in an overpopulated magnon gas even at room temperature,
have considerable potential for wave-based computing and information processing
at microwave frequencies. The ability to control the transport properties of
magnon BECs plays ... | 2208.13507v1 |
2022-09-05 | Nonlocal detection of interlayer three-magnon coupling | A leading nonlinear effect in magnonics is the interaction that splits a
high-frequency magnon into two low-frequency ones with conserved linear
momentum. Here, we report experimental observation of nonlocal three-magnon
scattering between spatially separated magnetic systems, viz. a CoFeB nanowire
and an yttrium iron ... | 2209.01875v1 |
2022-11-12 | Quantum control of a single magnon in a macroscopic spin system | Non-classical quantum states are the pivotal features of a quantum system
that differs from its classical counterpart. However, the generation and
coherent control of quantum states in a macroscopic spin system remain an
outstanding challenge. Here we experimentally demonstrate the quantum control
of a single magnon in... | 2211.06644v3 |
2022-11-16 | Detection sensitivity enhancement of magnon Kerr nonlinearity in cavity magnonics induced by coherent perfect absorption | We show how to enhance the detection sensitivity of magnon Kerr nonlinearity
(MKN) in cavity magnonics. The considered cavity-magnon system consists of a
three-dimensional microwave cavity containing two yttrium iron garnet (YIG)
spheres, where the two magnon modes (one has the MKN, while the other is
linear) in YIG sp... | 2211.08922v2 |
2023-01-16 | Crystal orientation dependent spin pumping in Bi0.1Y2.9Fe5O12/Pt interface | Ferromagnetic resonance (FMR) based spin pumping is a versatile tool to
quantify the spin mixing conductance and spin to charge conversion (S2CC)
efficiency of ferromagnet/normal metal (FM/NM) heterostructure. The spin mixing
conductance of FM/NM interface can also be tuned by the crystal orientation
symmetry of epitax... | 2301.06477v1 |
2023-02-02 | Ultrastrong Magnon-Photon Coupling Achieved by Magnetic Films in Contact with Superconducting Resonators | Coherent coupling between spin wave excitations (magnons) and microwave
photons in a cavity may disclose new paths to unconventional phenomena as well
as for novel applications. Here, we present a systematic investigation on YIG
(Yttrium Iron Garnet) films on top of coplanar waveguide resonators made of
superconducting... | 2302.00804v2 |
2023-02-10 | Laser-induced magnonic band gap formation and control in YIG/GaAs heterostructure | We demonstrate the laser-induced control over spin-wave (SW) transport in the
magnonic crystal (MC) waveguide formed from the semiconductor slab placed on
the ferrite film. We considered bilayer MC with periodical grooves performed on
the top of the n-type gallium arsenide slab side that oriented to the yttrium
iron ga... | 2302.05310v1 |
2023-03-04 | Controllable magnon-induced transparency in a ferromagnetic material via cross- and self-Kerr effects | Nonlinear interactions between optical fields and magnetic modes in cavity
magnonics constitute a rich source of various nontrivial effects in optics and
quantum information processing. In cavity magnonics, the nonlinear cross-Kerr
effect, which shifts the cavity's central frequency when a magnetic material is
pumped, ... | 2303.02332v1 |
2023-04-03 | Observation of spin-wave moiré edge and cavity modes in twisted magnetic lattices | We report the experimental observation of the spin-wave moir\'e edge and
cavity modes using Brillouin light scattering spectro-microscopy in a
nanostructured magnetic moir\'e lattice consisting of two twisted triangle
antidot lattices based on an yttrium iron garnet thin film. Spin-wave moir\'e
edge modes are detected ... | 2304.01001v1 |
2023-04-18 | Transient non-collinear magnetic state for all-optical magnetization switching | Resonant absorption of a photon by bound electrons in a solid can promote an
electron to another orbital state or transfer it to a neighboring atomic site.
Such a transition in a magnetically ordered material could affect the magnetic
order. While this process is an obvious road map for optical control of
magnetization... | 2304.08890v1 |
2023-04-21 | Magnon squeezing by two-tone driving of a qubit in cavity-magnon-qubit systems | We propose a scheme for preparing magnon squeezed states in a hybrid
cavity-magnon-qubit system. The system consists of a microwave cavity that
simultaneously couples to a magnon mode of a macroscopic yttrium-iron-garnet
(YIG) sphere via the magnetic-dipole interaction and to a transmon-type
superconducting qubit via t... | 2304.10760v4 |
2023-07-12 | Quantum information diode based on a magnonic crystal | Exploiting the effect of nonreciprocal magnons in a system with no inversion
symmetry, we propose a concept of a quantum information diode, {\it i.e.}, a
device rectifying the amount of quantum information transmitted in the opposite
directions. We control the asymmetric left and right quantum information
currents thro... | 2307.06047v1 |
2023-07-14 | Magnonic Combinatorial Memory | In this work, we consider a type of magnetic memory where information is
encoded into the mutual arrangements of magnets. The device is an active ring
circuit comprising magnetic and electronic parts connected in series. The
electric part includes a broad-band amplifier, phase shifters, and attenuators.
The magnetic pa... | 2307.07464v1 |
2023-08-02 | Frequency Tunable Magnetostatic Wave Filters With Zero Static Power Magnetic Biasing Circuitry | A single tunable filter simplifies complexity, reduces insertion loss, and
minimizes size compared to frequency switchable filter banks commonly used for
radio frequency (RF) band selection. Magnetostatic wave (MSW) filters stand out
for their wide, continuous frequency tuning and high-quality factor. However,
MSW filt... | 2308.00907v3 |
2023-09-16 | Exploring orbital-charge conversion mediated by interfaces with copper through spin-orbital pumping | We investigated how different materials affect the orbital-charge conversion
in heterostructures with the naturally oxidized cooper capping layer. When we
added a thin layer of $CuOx(3nm)$ onto yttrium iron garnet $(YIG)/W$ stacks, we
observed a significant reduction in the charge current signal measured by means
the s... | 2309.08857v2 |
2023-11-09 | Bose-Einstein condensation in systems with flux equilibrium | We consider flux equilibrium in dissipative nonlinear wave systems subject to
external energy pumping. In such systems, the elementary excitations, or
quasiparticles, can create a Bose-Einstein condensate. We develop a theory on
the Bose-Einstein condensation of quasiparticles for various regimes of
external excitation... | 2311.05315v1 |
2023-11-29 | Nonlinear erasing of propagating spin-wave pulses in thin-film Ga:YIG | Nonlinear phenomena are key for magnon-based information processing, but the
nonlinear interaction between two spin-wave signals requires their
spatio-temporal overlap which can be challenging for directional processing
devices. Our study focuses on a gallium-substituted yttrium iron garnet film,
which exhibits an exch... | 2311.17821v2 |
2023-12-07 | Magnon-Photon Coupling in an Opto-Electro-Magnonic Oscillator | The opto-electronic oscillators (OEOs) hosting self-sustained oscillations by
a time delayed mechanism are of particular interest in long-haul signal
transmission and processing. On the other hand, owing to their unique
tunability and compatibility, magnons - as elementary excitations of spin waves
- are advantageous c... | 2312.04676v2 |
2023-12-08 | Engineering synthetic gauge fields through the coupling phases in cavity magnonics | Cavity magnonics, which studies the interaction of light with magnetic
systems in a cavity, is a promising platform for quantum transducers, quantum
memories, and devices with non-reciprocal behaviour. At microwave frequencies,
the coupling between a cavity photon and a magnon, the quasi-particle of a spin
wave excitat... | 2312.04915v3 |
2023-12-14 | Nonlocal damping of spin waves in a magnetic insulator induced by normal, heavy, or altermagnetic metallic overlayer: a Schwinger-Keldysh field theory approach | Understanding spin wave (SW) damping, and how to control it to the point of
being able to amplify SW-mediated signals, is one of the key requirements to
bring the envisaged magnonic technologies to fruition. Even widely used
magnetic insulators with low magnetization damping in their bulk, such as
yttrium iron garnet, ... | 2312.09140v1 |
2023-12-15 | Magnon Bose-Einstein condensates: from time crystals and quantum chromodynamics to vortex sensing and cosmology | Under suitable experimental conditions collective spin-wave excitations,
magnons, form a Bose-Einstein condensate (BEC) where the spins precess with a
globally coherent phase. Bose-Einstein condensation of magnons has been
reported in a few systems, including superfluid phases of $^3$He, solid state
systems such as Ytt... | 2312.10119v1 |
2023-12-22 | Magnon-assisted magnetization reversal of Ni81Fe19 nanostripes on Y3Fe5O12 with different interfaces | Magnetic bit writing by short-wave magnons without conversion to the
electrical domain is expected to be a game-changer for in-memory computing
architectures. Recently, the reversal of nanomagnets by propagating magnons was
demonstrated. However, experiments have not yet explored different wavelengths
and the nonlinear... | 2312.15107v1 |
2024-01-04 | Nonreciprocal photon blockade with Kerr magnons | Nonreciprocal devices, allowing to manipulate one-way signals, are crucial to
quantum information processing and quantum network. Here we propose a nonlinear
cavity-magnon system, consisting of a microwave cavity coupled to one or two
yttrium-iron-garnet (YIG) spheres supporting magnons with Kerr nonlinearity, to
inves... | 2401.02251v1 |
2024-03-20 | New opportunities in condensed matter physics for nanoscale quantum sensors | Nitrogen vacancy (NV) centre quantum sensors provide unique opportunities in
studying condensed matter systems: they are quantitative, noninvasive,
physically robust, offer nanoscale resolution, and may be used across a wide
range of temperatures. These properties have been exploited in recent years to
obtain nanoscale... | 2403.13710v1 |
2024-02-19 | Magnetic anisotropy and GGG substrate stray field in YIG films down to millikelvin temperatures | Quantum magnonics investigates the quantum-mechanical properties of magnons
such as quantum coherence or entanglement for solid-state quantum information
technologies at the nanoscale. The most promising material for quantum
magnonics is the ferrimagnetic yttrium iron garnet (YIG), which hosts magnons
with the longest ... | 2402.12112v1 |
2003-01-10 | Enhancement of the electron electric dipole moment in gadolinium garnets | Effects caused by the electron electric dipole moment (EDM) in gadolinium
garnets are considered. Experimental studies of these effects could improve
current upper limit on the electron EDM by several orders of magnitude. We
suggest a consistent theoretical model and perform calculations of observable
effects in gadoli... | 0301133v1 |
2008-06-04 | Electric Field Induced Transformation of Magnetic Domain Structure in Magnetoelectric Iron Garnet Films | The room temperature magnetoelectric effect was observed in epitaxial iron
garnet films that appeared as magnetic domain wall motion induced by electric
field. The films grown on gadolinium-gallium garnet substrates with various
crystallographic orientations were examined. The effect was observed in (210)
and (110) fil... | 0806.0811v1 |
2015-03-27 | Crystal field and magnetism with Wannier functions: Rare-earth doped aluminum garnets | Using the recently developed method we calculate the crystal field parameters
in yttrium and lutetium aluminum garnets doped with seven trivalent Kramers
rare-earth ions. We then insert calculated parameters into the atomic-like
Hamiltonian taking into account the electron-electron, spin-orbit and Zeeman
interactions a... | 1503.07987v2 |
2008-08-04 | Superconductivity and Magnetism in REFeAsO1-xFx (RE=Rare Earth Elements) | Fluoride-doped iron-based oxypnictides containing rare-earth gadolinium
(GdFeAsO0.8F0.2) and co-doping with yttrium (Gd0.8Y0.2FeAsO0.8F0.2) have been
prepared via conventional solid state reaction at ambient pressure. The
non-yttrium substituted oxypnictide show superconducting transition as high as
43.9 K from tempera... | 0808.0289v1 |
2009-05-19 | Orientation of Nd$^{3+}$ dipoles in yttrium aluminum garnet: A simple yet accurate model | We report an experimental study of the 1064nm transition dipoles in neodymium
doped yttrium aluminum garnet (Nd-YAG) by measuring the coupling constant
between two orthogonal modes of a laser cavity for different cuts of the YAG
gain crystal. We propose a theoretical model in which the transition dipoles,
slightly elli... | 0905.3125v1 |
2018-12-31 | Vanadium in yttrium aluminum garnet: charge states and localization in the lattice | Vanadium ions charge states and their incorporation in the yttrium aluminum
garnet Y3Al5O12 (YAG) lattice were studied by the correlated optical absorption
and electron paramagnetic resonance (EPR) measurements. In as-grown crystals,
the occupation of the V3+ at both the octahedral and tetrahedral aluminum sites
was pr... | 1812.11877v1 |
2021-03-03 | Calibration of the scintillation of cerium-doped yttrium aluminum garnet crystals irradiated by monoenergetic 4 MeV energy electrons | This paper presents the results of measurements of fluorescing cerium-doped
yttrium aluminum garnet crystals after being irradiated by an accelerated
electron beam with energy of around 4 MeV. The measurements were performed
using the PHIL linear accelerator at LAL (France). We observe linear dependence
of the crystal ... | 2103.02497v1 |
2018-05-07 | Detection of the interfacial exchange field at a ferromagnetic insulator-nonmagnetic metal interface with pure spin currents | At the interface between a nonmagnetic metal (NM) and a ferromagnetic
insulator (FI) spin current can interact with the magnetization, leading to a
modulation of the spin current. The interfacial exchange field at these FI-NM
interfaces can be probed by placing the interface in contact with the spin
transport channel o... | 1805.02433v2 |
2019-05-10 | Experimental Implementations of Cavity-Magnon Systems: from Ultra Strong Coupling to Applications in Precision Measurement | Several experimental implementations of cavity-magnon systems are presented.
First an Yttrium Iron Garnet (YIG) block is placed inside a re-entrant cavity
where the resulting hybrid mode is measured to be in the ultra strong coupling
regime. When fully hybridised the ratio between the coupling rate and uncoupled
mode f... | 1905.04002v2 |
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