publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2020-07-20 | Sizable spin-transfer torque in Bi/Ni80Fe20 bilayer film | The search for efficient spin conversion in Bi has attracted great attention
in spin-orbitronics. In the present work, we employ spin-torque ferromagnetic
resonance to investigate spin conversion in Bi/Ni80Fe20(Py) bilayer films with
continuously varying Bi thickness. In contrast with previous studies, sizable
spin-tra... | 2007.09830v1 |
2020-07-27 | Probing thermal magnon current mediated by coherent magnon via nitrogen-vacancy centers in diamond | Currently, thermally excited magnons are being intensively investigated owing
to their potential in computing devices and thermoelectric conversion
technologies. We report the detection of thermal magnon current propagating in
a magnetic insulator yttrium iron garnet under a temperature gradient using a
quantum sensor:... | 2007.13433v6 |
2020-07-30 | Coherent multi-mode conversion from microwave to optical wave via a magnon-cavity hybrid system | Coherent conversion from microwave to optical wave opens new research avenues
towards long distant quantum network covering quantum communication, computing,
and sensing out of the laboratory. Especially multi-mode enabled system is
essential for practical applications. Here we experimentally demonstrate
coherent multi... | 2007.15299v1 |
2020-08-04 | Quantitative comparison of magnon transport experiments in three-terminal YIG/Pt nanostructures acquired via dc and ac detection techniques | All-electrical generation and detection of pure spin currents is a promising
way towards controlling the diffusive magnon transport in magnetically ordered
insulators. We quantitatively compare two measurement schemes, which allow to
measure the magnon spin transport in a three-terminal device based on a yttrium
iron g... | 2008.01416v1 |
2020-09-09 | Sub-pico-liter magneto-optical cavities | Microwave-to-optical conversion via ferromagnetic magnons has so-far been
limited by the optical coupling rates achieved in mm-scale whispering gallery
mode resonators. Towards overcoming this limitation, we propose and demonstrate
an open magneto-optical cavity containing a thin-film of yttrium iron garnet
(YIG). We a... | 2009.04162v1 |
2020-09-09 | Effect of dipolar interactions on cavity magnon-polaritons | The strong photon-magnon coupling between an electromagnetic cavity and two
yttrium iron garnet (YIG) spheres has been investigated in the context of a
strong mutual dipolar interaction between the spheres. A decrease in the
coupling strength between the YIG spheres and the electromagnetic cavity is
observed, along wit... | 2009.04557v1 |
2020-09-30 | Phase-modulated cavity magnon polaritons as a precise magnetic field probe | We describe and operate a novel spin-magnetometer based on the phase
modulation of cavity magnon polaritons. In this scheme a rf magnetic field is
detected through the sidebands it induces on a pump, and the experimental
configuration allows for a negligible pump noise and a high frequency readout.
The demonstrator set... | 2010.00093v3 |
2020-10-09 | Einstein-Podolsky-Rosen entanglement and asymmetric steering between distant macroscopic mechanical and magnonic systems | We propose a deterministic scheme for establishing hybrid
Einstein-Podolsky-Rosen (EPR) entanglement channel between a macroscopic
mechanical oscillator and a magnon mode in a distant yttrium-iron-garnet (YIG)
sphere across about ten gigahertz of frequency difference. The system consists
of a driven electromechanical c... | 2010.04357v1 |
2020-10-18 | Observation of magnon-polarons in a uniaxial antiferromagnetic insulator | Magnon-polarons, a type of hybridized excitations between magnons and
phonons, were first reported in yttrium iron garnet as anomalies in the spin
Seebeck effect responses. Here we report an observation of antiferromagnetic
(AFM) magnon-polarons in a uniaxial AFM insulator Cr2O3. Despite the relatively
higher energy of... | 2010.08926v1 |
2020-10-24 | Enhanced sensing of weak anharmonicities through coherences in dissipatively coupled anti-PT symmetric systems | In the last few years, the great utility of PT-symmetric systems in sensing
small perturbations has been recognized. Here, we propose an alternate method
relevant to dissipative systems, especially those coupled to the vacuum of the
electromagnetic fields. In such systems, which typically show anti-PT symmetry
and do n... | 2010.12954v1 |
2020-11-16 | Electrically induced strong modulation of magnons transport in ultrathin magnetic insulator films | Magnon transport through a magnetic insulator can be controlled by
current-biased heavy-metal gates that modulate the magnon conductivity via the
magnon density. Here, we report nonlinear modulation effects in 10$\,$nm thick
yttrium iron garnet (YIG) films. The modulation efficiency is larger than
40\%/mA. The spin tra... | 2011.07800v1 |
2020-12-01 | Design of an optomagnonic crystal: towards optimal magnon-photon mode matching at the microscale | We put forward the concept of an optomagnonic crystal: a periodically
patterned structure at the microscale based on a magnetic dielectric, which can
co-localize magnon and photon modes. The co-localization in small volumes can
result in large values of the photon-magnon coupling at the single quanta
level, which opens... | 2012.00760v2 |
2020-12-14 | Effect of magnon decays on parametrically pumped magnons | We investigate the influence of magnon decays on the non-equilibrium dynamics
of parametrically excited magnons in the magnetic insulator yttrium-iron garnet
(YIG). Our investigations are motivated by a recent experiment by Noack et al.
[Phys. Status Solidi B 256, 1900121 (2019)] where an enhancement of the spin
pumpin... | 2012.07870v2 |
2021-01-08 | Compact tunable YIG-based RF resonators | We report on the design, fabrication, and characterization of compact tunable
yttrium iron garnet (YIG) based RF resonators based on $\mu$m-sized spin-wave
cavities. Inductive antennas with both ladder and meander configurations were
used as transducers between spin waves and RF signals. The excitation of
ferromagnetic... | 2101.02909v4 |
2021-01-19 | Evolution of room-temperature magnon gas toward coherent Bose-Einstein condensate | The appearance of spontaneous coherence is a fundamental feature of a
Bose-Einstein condensate and an essential requirement for possible applications
of the condensates for data processing and quantum computing. In the case of a
magnon condensate in a magnetic crystal, such computing can be performed even
at room tempe... | 2101.07890v1 |
2021-02-24 | Phase-controlled pathway interferences and switchable fast-slow light in a cavity-magnon polariton system | We study the phase controlled transmission properties in a compound system
consisting of a 3D copper cavity and an yttrium iron garnet (YIG) sphere. By
tuning the relative phase of the magnon pumping and cavity probe tones,
constructive and destructive interferences occur periodically, which strongly
modify both the ca... | 2102.12181v1 |
2021-03-05 | Local heat emission due to unidirectional spin-wave heat conveyer effect observed by lock-in thermography | Lock-in thermography measurements were performed to reveal heat source
distribution induced by the unidirectional spin-wave heat conveyer effect
(USHCE) of magnetostatic surface spin waves. When the magnetostatic surface
spin waves are excited in an yttrium iron garnet slab, the lock-in thermography
images show spatial... | 2103.03694v1 |
2021-03-19 | Remote magnon entanglement between two massive ferrimagnetic spheres via cavity optomagnonics | Recent studies show that hybrid quantum systems based on magnonics provide a
new and promising platform for generating macroscopic quantum states involving
a large number of spins. Here we show how to entangle two magnon modes in two
massive yttrium-iron-garnet (YIG) spheres using cavity optomagnonics, where
magnons co... | 2103.10595v2 |
2021-03-31 | Room temperature antiferromagnetic resonance and inverse spin-Hall voltage in canted antiferromagnets | We study theoretically and experimentally the spin pumping signals induced by
the resonance of canted antiferromagnets with Dzyaloshinskii-Moriya interaction
and demonstrate that they can generate easily observable inverse spin-Hall
voltages. Using a bilayer of hematite/heavy metal as a model system, we measure
at room... | 2103.16872v1 |
2021-04-22 | Theory for electrical detection of the magnon Hall effect induced by dipolar interactions | We derive the anomalous Hall contributions arising from dipolar interactions
to diffusive spin transport in magnetic insulators. Magnons, the carriers of
angular momentum in these systems, are shown to have a non-zero Berry
curvature, resulting in a measurable Hall effect. For yttrium iron garnet (YIG)
thin films we ca... | 2104.11304v1 |
2021-04-26 | Cavity magnomechanical storage and retrieval of quantum states | We show how a quantum state in a microwave cavity mode can be transferred to
and stored in a phononic mode via an intermediate magnon mode in a
magnomechanical system. For this we consider a ferrimagnetic yttrium iron
garnet (YIG) sphere inserted in a microwave cavity, where the microwave and
magnon modes are coupled v... | 2104.12323v1 |
2021-05-06 | Spin Wave Interference Detection via Inverse Spin Hall Effect | In this letter, we present experimental data demonstrating spin wave
interference detection using spin Hall effect (ISHE). Two coherent spin waves
are excited in a yttrium-iron garnet (YIG) waveguide by continuous microwave
signals. The initial phase difference between the spin waves is controlled by
the external phase... | 2105.02979v1 |
2021-05-18 | Parity-symmetry-breaking quantum phase transition via parametric drive in a cavity magnonic system | We study the parity-symmetry-breaking quantum phase transition (QPT) in a
cavity magnonic system driven by a parametric field, where the magnons in a
ferrimagnetic yttrium-iron-garnet sphere strongly couple to a microwave cavity.
With appropriate parameters, this cavity magnonic system can exhibit a rich
phase diagram,... | 2105.08371v3 |
2021-05-22 | Ferromagnetic resonance modes in the exchange dominated limit in cylinders of finite length | We analyze the magnetic mode structure of axially-magnetized, finite-length,
nanoscopic cylinders in a regime where the exchange interaction dominates,
along with simulations of the mode frequencies of the ferrimagnet yttrium iron
garnet. For the bulk modes we find that the frequencies can be represented by
an expressi... | 2105.10795v1 |
2021-05-24 | Phase-resolved electrical detection of coherently coupled magnonic devices | We demonstrate the electrical detection of magnon-magnon hybrid dynamics in
yttrium iron garnet/permalloy (YIG/Py) thin film bilayer devices. Direct
microwave current injection through the conductive Py layer excites the hybrid
dynamics consisting of the uniform mode of Py and the first standing spin wave
($n=1$) mode ... | 2105.11057v1 |
2021-06-15 | Nonreciprocal high-order sidebands induced by magnon Kerr nonlinearity | We propose an effective approach for creating robust nonreciprocity of
high-order sidebands, including the first-, second- and third-order sidebands,
at microwave frequencies. This approach relies on magnon Kerr nonlinearity in a
cavity magnonics system composed of two microwave cavities and one yttrium iron
garnet (YI... | 2106.09542v1 |
2021-06-21 | A low-loss ferrite circulator as a tunable chiral quantum system | Ferrite microwave circulators allow one to control the directional flow of
microwave signals and noise, and thus play a crucial role in present-day
superconducting quantum technology. They are typically viewed as a black-box,
and their internal structure is not specified, let alone used as a resource. In
this work, we ... | 2106.11283v2 |
2021-06-24 | Control of nonlocal magnon spin transport via magnon drift currents | Spin transport via magnon diffusion in magnetic insulators is important for a
broad range of spin-based phenomena and devices. However, the absence of the
magnon equivalent of an electric force is a bottleneck. In this work, we
demonstrate the controlled generation of magnon drift currents in yttrium iron
garnet/platin... | 2106.12946v1 |
2021-08-06 | Magnon transport in $\mathrm{\mathbf{Y_3Fe_5O_{12}}}$/Pt nanostructures with reduced effective magnetization | For applications making use of magnonic spin currents damping effects, which
decrease the spin conductivity, have to be minimized. We here investigate the
magnon transport in an yttrium iron garnet thin film with strongly reduced
effective magnetization. We show that in a three-terminal device the effective
magnon cond... | 2108.03263v1 |
2021-10-09 | Single-shot imaging of ultrafast all-optical magnetization dynamics with a spatio-temporal resolution | We present a laboratory system for single-shot magneto-optical (MO) imaging
of ultrafast magnetization dynamics with high-sensitivity of MO rotation. We
create a stack of MO images repeatedly employing a single pair of a pump and
defocused probe pulses to induce and visualize MO changes in the sample. Both
laser beams ... | 2110.04506v1 |
2021-10-26 | Giant quadratic magneto-optical response of thin YIG films for sensitive magnetometric experiments | We report on observation of a magneto-optical effect quadratic in
magnetization (Cotton-Mouton effect) in 50 nm thick layer of Yttrium-Iron
Garnet (YIG). By a combined theoretical and experimental approach, we managed
to quantify both linear and quadratic magneto-optical effects. We show that the
quadratic magneto-opti... | 2110.13679v1 |
2021-10-31 | Thermally induced all-optical ferromagnetic resonance in thin YIG films | All-optical ferromagnetic resonance (AO-FMR) is a powerful tool for local
detection of micromagnetic parameters, such as magnetic anisotropy, Gilbert
damping or spin stiffness. In this work we demonstrate that the AO-FMR method
can be used in thin films of Yttrium Iron Garnet (YIG) if a metallic capping
layer (Au, Pt) ... | 2111.00586v1 |
2021-11-12 | Classical analog of qubit logic based on a magnon Bose-Einstein condensate | We present a classical version of several quantum bit (qubit) functionalities
using a two-component magnon Bose-Einstein condensate formed at opposite
wavevectors in a room-temperature yttrium-iron-garnet ferrimagnetic film. The
macroscopic wavefunctions of these two condensates serve as orthonormal basis
states that f... | 2111.06798v2 |
2021-11-16 | Optical sensing of magnons via the magnetoelastic displacement | We show how to measure a steady-state magnon population in a magnetostatic
mode of a ferromagnet or ferrimagnet, such as yttrium iron garnet. We adopt an
optomechanical approach and utilize the magnetoelasticity of the ferromagnet.
The magnetostrictive force dispersively couples magnons to the deformation
displacement ... | 2111.08376v2 |
2021-11-30 | Steering light with magnetic textures | We study the steering of visible light using a combination of magneto-optical
effects and the reconfigurability of magnetic domains in Yttrium-Iron Garnet
films. The spontaneously formed stripe domains are used as a field-controlled
optical grating, allowing for active spatiotemporal control of light. We
discuss the ba... | 2111.15219v3 |
2021-12-01 | Strong Long-Range Spin-Spin Coupling via a Kerr Magnon Interface | Strong long-range coupling between distant spins is crucial for spin-based
quantum information processing. However, achieving such a strong spin-spin
coupling remains challenging. Here we propose to realize a strong coupling
between two distant spins via the Kerr effect of magnons in a
yttrium-iron-garnet nanosphere. B... | 2112.00452v3 |
2021-12-03 | Microwave Amplification in a PT -symmetric-like Cavity Magnomechanical System | We propose a scheme that can generate tunable magnomechanically induced
amplification in a double-cavity parity-time-(PT -) symmetric-like
magnomechanical system under a strong control and weak probe field. The system
consists of a ferromagnetic-material yttrium iron garnet (YIG) sphere placed in
a passive microwave ca... | 2112.01727v1 |
2021-12-27 | Observation of magnon cross-Kerr effect in cavity magnonics | When there is a certain amount of field inhomogeneity, the biased
ferrimagnetic crystal will exhibit the higher-order magnetostatic (HMS) mode in
addition to the uniform-precession Kittel mode. In cavity magnonics, we show
both experimentally and theoretically the cross-Kerr-type interaction between
the Kittel mode and... | 2112.13807v1 |
2022-01-11 | Building instructions for a ferromagnetic axion haloscope | A ferromagnetic haloscope is a rf spin-magnetometer used for searching Dark
Matter in the form of axions. A magnetic material is monitored searching for
anomalous magnetization oscillations which can be induced by dark matter
axions. To properly devise such instrument one first needs to understand the
features of the s... | 2201.04081v1 |
2022-01-26 | Nonlinear magnon polaritons | We experimentally and theoretically demonstrate that nonlinear spin-wave
interactions suppress the hybrid magnon-photon quasiparticle or "magnon
polariton" in microwave spectra of an yttrium iron garnet film detected by an
on-chip split-ring resonator. We observe a strong coupling between the Kittel
and microwave cavit... | 2201.10889v2 |
2022-02-06 | Coexistence of coupling-induced transparency and absorption of transmission signals in magnon-mediated photon-photon coupling | Coexistence of coupling-induced transparency (CIT) and absorption (CIA) of
signals in magnon-mediated photon-photon coupling was experimentally determined
in a planar hybrid structure consisting of a yttrium iron garnet (YIG) film and
three concentric inverted-split-ring resonators (ISRRs). The experimental
observation... | 2202.02667v1 |
2022-04-12 | Spin Peltier effect and its length scale in Pt/YIG system at high temperatures | The temperature and yttrium-iron-garnet (YIG) thickness dependences of the
spin Peltier effect (SPE) have been investigated using a Pt/YIG junction system
at temperatures ranging from room temperature to the Curie temperature of YIG
by the lock-in thermography method. By analyzing the YIG thickness dependence
using an ... | 2204.05482v1 |
2022-05-10 | Optimal broad-band frequency conversion via a magnomechanical transducer | Developing schemes for efficient and broad-band frequency conversion of
quantum signals is an ongoing challenge in the field of modern quantum
information. Especially the coherent conversion between microwave and optical
signals is an important milestone towards long-distance quantum communication.
In this work, we pro... | 2205.05088v2 |
2022-06-02 | Bistability in dissipatively coupled cavity magnonics | Dissipative coupling of resonators arising from their cooperative dampings to
a common reservoir induces intriguingly new physics such as energy level
attraction. In this study, we report the nonlinear properties in a
dissipatively coupled cavity magnonic system. A magnetic material YIG (yttrium
iron garnet) is placed ... | 2206.01231v1 |
2022-06-09 | Magnetically tunable zero-index metamaterials | Zero-index metamaterials (ZIMs) feature a uniform electromagnetic mode over a
large area in arbitrary shapes, enabling many applications including
high-transmission supercouplers with arbitrary shapes, direction-independent
phase matching for nonlinear optics, and collective emission of many quantum
emitters. However, ... | 2206.04237v1 |
2022-06-26 | Tripartite high-dimensional magnon-photon entanglement in PT -symmetry broken phases of a non-Hermitian hybrid system | Hybrid systems that combine spin ensembles and superconducting circuits
provide a promising platform for implementing quantum information processing.
We propose a non-Hermitian magnoncircuit-QED hybrid model consisting of two
cavities and an yttrium iron garnet (YIG) sphere placed in one of the cavities.
Abundant excep... | 2206.12769v1 |
2022-06-29 | Mechanical Bistability in Kerr-modified Cavity Magnomechanics | Bistable mechanical vibration is observed in a cavity magnomechanical system,
which consists of a microwave cavity mode, a magnon mode, and a mechanical
vibration mode of a ferrimagnetic yttrium-iron-garnet (YIG) sphere. The
bistability manifests itself in both the mechanical frequency and linewidth
under a strong micr... | 2206.14588v2 |
2022-06-30 | Second order nonlinearity induced multipartite entanglement in a hybrid magnon cavity QED system | We present a proposal to produce bipartite and tripartite entanglement in a
hybrid magnon-cavity QED system. Two macroscopic yttrium iron garnet (YIG)
spheres are coupled to a single-mode microwave cavity via magnetic dipole
interaction, while the cavity photons are generated via the two photon process
induced by a pum... | 2206.15326v1 |
2022-07-07 | Experimental Demonstration of High-Performance Physical Reservoir Computing with Nonlinear Interfered Spin Wave Multi-Detection | Physical reservoir computing, which is a promising method for the
implementation of highly efficient artificial intelligence devices, requires a
physical system with nonlinearity, fading memory, and the ability to map in
high dimensions. Although it is expected that spin wave interference can
perform as highly efficien... | 2207.03216v1 |
2022-08-08 | Effect of intense x-ray free-electron laser transient gratings on the magnetic domain structure of Tm:YIG | Magnetic patterns can be controlled globally using fields or spin polarized
currents. In contrast, the local control of the magnetization on the nanometer
length scale remains challenging. Here, we demonstrate how magnetic domain
patterns in a Tm-doped yttrium iron garnet (Tm:YIG) thin film with
perpendicular magnetic ... | 2208.04200v2 |
2022-09-09 | A spinwave Ising machine | We demonstrate a spin-wave-based time-multiplexed Ising Machine (SWIM),
implemented using a 5 $\mu$m thick Yttrium Iron Garnet (YIG) film and
off-the-shelf microwave components. The artificial Ising spins consist of
34--68 ns long 3.125 GHz spinwave RF pulses with their phase binarized using a
phase-sensitive microwave... | 2209.04291v1 |
2022-09-21 | Interactive Entanglement in Hybrid Opto-magno-mechanics System | We present a novel cavity opto-magno-mechanical hybrid system to generate
entanglements among multiple quantum carriers, such as magnons, mechanical
resonators, and cavity photons in both the optical and microwave domains. Two
Yttrium iron garnet (YIG) spheres are embedded in two separate microwave
cavities which are j... | 2209.10120v2 |
2022-10-03 | Chirality-induced one-way quantum steering between two waveguide-mediated ferrimagnetic microspheres | One-way quantum steering is of importance for quantum technologies, such as
secure quantum teleportation. In this paper, we study the generation of one-way
quantum steering between two distant yttrium iron garnet (YIG) microspheres in
chiral waveguide electromagonics. We consider that the magnon mode with the
Kerr nonl... | 2210.00710v1 |
2022-10-27 | Quantum-state engineering in cavity magnomechanics formed by two-dimensional magnetic materials | Cavity magnomechanics has become an ideal platform to explore macroscopic
quantum effects. Bringing together magnons, phonons, and photons in a system,
it opens many opportunities for quantum technologies. It was conventionally
realized by an yttrium iron garnet, which exhibits a parametric magnon-phonon
coupling $\hat... | 2210.15519v2 |
2022-11-27 | Entangled atomic ensemble and an yttrium-iron-garnet sphere in coupled microwave cavities | We present a scheme to generate distant bipartite and tripartite entanglement
between an atomic ensemble and an yttrium iron garnet (YIG) sphere in coupled
microwave cavities. We consider an atomic ensemble in a single-mode microwave
cavity which is coupled with a second single-mode cavity having a YIG sphere.
Our syst... | 2211.14914v2 |
2022-12-02 | Coherent magnon-induced domain wall motion in a magnetic insulator channel | Advancing the development of spin-wave devices requires high-quality
low-damping magnetic materials where magnon spin currents can propagate
efficiently and interact effectively with local magnetic textures. We show that
magnetic domain walls (DW) can modulate spin-wave transport in perpendicularly
magnetized channels ... | 2212.01408v1 |
2023-01-22 | Magnon bundle in a strongly dissipative magnet | Hybrid quantum systems based on magnetic platforms have witnessed the birth
and fast development of quantum spintronics. Until now, most of the studies
rely on magnetic excitations in low-damping magnetic insulators, particularly
yttrium iron garnet, while a large class of magnetic systems is ruled out in
this interdis... | 2301.09095v1 |
2023-02-14 | Switchable Superradiant Phase Transition with Kerr Magnons | The superradiant phase transition (SPT) has been widely studied in cavity
quantum electrodynamics (CQED). However, this SPT is still subject of ongoing
debates due to the no-go theorem induced by the so-called ${\bf A}^2$ term
(AT). We propose a hybrid quantum system, consisting of a single-mode cavity
simultaneously c... | 2302.07163v2 |
2023-02-24 | A Fiber-coupled Scanning Magnetometer with Nitrogen-Vacancy Spins in a Diamond Nanobeam | Magnetic imaging with nitrogen-vacancy (NV) spins in diamond is becoming an
established tool for studying nanoscale physics in condensed matter systems.
However, the optical access required for NV spin readout remains an important
hurdle for operation in challenging environments such as millikelvin cryostats
or biologi... | 2302.12536v1 |
2023-03-02 | Unidirectional Microwave Transduction with Chirality Selected Short-Wavelength Magnon Excitations | Nonreciprocal magnon propagation has recently become a highly potential
approach of developing chip-embedded microwave isolators for advanced
information processing. However, it is challenging to achieve large
nonreciprocity in miniaturized magnetic thin-film devices because of the
difficulty of distinguishing propagat... | 2303.00936v1 |
2023-03-08 | Nonreciprocity in Cavity Magnonics at Milikelvin Temperature | Incorporating cavity magnonics has opened up a new avenue in controlling
non-reciprocity. This work examines a yttrium iron garnet sphere coupled to a
planar microwave cavity at milli-Kelvin temperature. Non-reciprocal device
behavior results from the cooperation of coherent and dissipative coupling
between the Kittel ... | 2303.04358v1 |
2023-03-20 | Secondary Excitation of Spin-Waves: How Electromagnetic Cross-Talk Impacts on Magnonic Devices | This work examines the impact of electromagnetic cross-talk in magnonic
devices when using inductive spin-wave (SW) transducers. We present detailed
electrical SW spectroscopy measurements showing the signal contributions to be
considered in magnonic device design. We further provide a rule of thumb
estimation for the ... | 2303.11303v2 |
2023-04-04 | Full quantum theory for magnon transport in two-sublattice magnetic insulators and magnon junctions | Magnon, as elementary excitation in magnetic systems, can carry and transfer
angular momentum. Due to the absence of Joule heat during magnon transport,
researches on magnon transport have gained considerable interests over the past
decade. Recently, a full quantum theory has been employed to investigate magnon
transpo... | 2304.01930v1 |
2023-04-26 | Critical Cavity-Magnon Polariton Mediated Strong Long-Distance Spin-Spin Coupling | Strong long-distance spin-spin coupling is desperately demanded for
solid-state quantum information processing, but it is still challenged. Here,
we propose a hybrid quantum system, consisting of a coplanar waveguide (CPW)
resonator weakly coupled to a single nitrogen-vacancy spin in diamond and a
yttrium-iron-garnet (... | 2304.13553v2 |
2023-04-26 | Rapid-prototyping of microscopic thermal landscapes in Brillouin light scattering spectroscopy | Since temperature and its spatial and temporal variations affect a wide range
of physical properties of material systems, they can be used to create
reconfigurable spatial structures of various types in physical and biological
objects. This paper presents an experimental optical setup for creating tunable
two-dimension... | 2304.13658v2 |
2023-05-10 | Proposal for optomagnonic teleportation and entanglement swapping | A protocol for realizing discrete-variable quantum teleportation in an
optomagnonic system is provided. Using optical pulses, an arbitrary photonic
qubit state encoded in orthogonal polarizations is transferred onto the joint
state of a pair of magnonic oscillators in two macroscopic yttrium-iron-garnet
(YIG) spheres t... | 2305.05889v1 |
2023-05-15 | Quantum interference induced magnon blockade and antibunching in a hybrid quantum system | In this work, we study the phenomena of quantum interference assisted magnon
blockade and magnon antibunching in a weakly interacting hybrid
ferromagnet-superconductor system. The magnon excitations in two yttrium iron
garnet spheres are indirectly coupled to a superconducting qubit through
microwave cavity modes of tw... | 2305.08444v1 |
2023-05-16 | Tunable all-optical logic gates based on nonreciprocal topologically protected edge modes | All-optical logic gates have been studied intensively for their potential to
enable broadband, low-loss, and high-speed communication. However, poor
tunability has remained a key challenge in this field. In this paper, we
propose a Y-shaped structure composed of Yttrium Iron Garnet (YIG) layers that
can serve as tunabl... | 2305.09270v1 |
2023-06-07 | Gain assisted controllable fast light generation in cavity magnomechanics | We study the controllable output field generation from a cavity
magnomechanical resonator system that consists of two coupled microwave
resonators. The first cavity interacts with a ferromagnetic yttrium iron garnet
(YIG) sphere providing the magnon-photon coupling. Under passive cavities
configuration, the system disp... | 2306.04390v1 |
2023-07-04 | Magnonic Hong-Ou-Mandel Effect | We carried out numerical simulations of propagation of spin waves (magnons in
quantum language) in a yttrium-iron garnet film. The numerical model is based
on an original formalism. We demonstrated that a potential barrier for magnons,
created by an Oersted field of a dc current flowing through a wire sitting on
top of... | 2307.01547v1 |
2023-07-06 | Realization of the unidirectional amplification in a cavity magnonic system | We experimentally demonstrate the nonreciprocal microwave amplification using
a cavity magnonic system, consisting of a passive cavity (i.e., the split-ring
resonator), an active feedback circuit integrated with an amplifier, and a
ferromagnetic spin ensemble (i.e., a yttrium-iron-garnet sphere). Combining the
amplific... | 2307.02826v2 |
2023-07-19 | Zero-field spin waves in YIG nano-waveguides | Spin-wave based transmission and processing of information is a promising
emerging nano-technology that can help overcome limitations of traditional
electronics based on the transfer of electrical charge. Among the most
important challenges for this technology is the implementation of spin-wave
devices that can operate... | 2307.09805v1 |
2023-07-19 | Enhanced bipartite entanglement and Gaussian quantum steering of squeezed magnon modes | We theoretically investigate a scheme to entangle two squeezed magnon modes
in a double cavitymagnon system, where both cavities are driven by a two-mode
squeezed vacuum microwave field. Each cavity contains an optical parametric
amplifier as well as a macroscopic yttrium iron garnet (YIG) sphere placed near
the maximu... | 2307.09846v1 |
2023-07-31 | Gating ferromagnetic resonance of magnetic insulators by superconductors via modulating electric-field radiation | We predict that ferromagnetic resonance in insulating magnetic film with
inplane magnetization radiates electric fields polarized along the
magnetization with opposite amplitudes at two sides of the magnetic insulator,
which can be modulated strongly by adjacent superconductors. With a single
superconductor adjacent to... | 2307.16472v2 |
2023-08-15 | Global biasing using a Hardware-based artificial Zeeman term in Spinwave Ising Machines | A spinwave Ising machine (SWIM) is a newly proposed type of time-multiplexed
hardware solver for combinatorial optimization that employs feedback coupling
and phase sensitive amplification to map an Ising Hamiltonian into
phase-binarized propagating spin-wave RF pulses in an Yttrium-Iron-Garnet (YIG)
film. In this work... | 2308.07718v1 |
2023-08-25 | Macroscopic distant magnon modes entanglement via a squeezed reservoir | The generation of robust entanglement in quantum system arrays is a crucial
aspect of the realization of efficient quantum information processing.
Recently, the field of quantum magnonics has garnered significant attention as
a promising platform for advancing in this direction. In our proposed scheme,
we utilize a one... | 2308.13586v3 |
2023-08-28 | Spin wave mode conversion in an in-plane magnetized microscale T-shaped YIG magnonic splitter | As one of the fundamental magnonic devices, a magnonic splitter device has
been proposed and spin wave propagation in this device has been studied
numerically and experimentally. In the present work, we fabricated a T-shaped
magnonic splitter with 6 $\mu$m-wide three arms using a 100 nm-thick yttrium
iron garnet film a... | 2308.14327v1 |
2023-08-30 | Chiral cavity-magnonic system for the unidirectional emission of a tunable squeezed microwave field | Unidirectional photon emission is crucial for constructing quantum networks
and realizing scalable quantum information processing. In the present work an
efficient scheme is developed for the unidirectional emission of a tunable
squeezed microwave field. Our scheme is based on a chiral cavity magnonic
system, where a m... | 2308.15826v1 |
2023-09-08 | Programmable Real-Time Magnon Interference in Two Remotely Coupled Magnonic Resonators | Magnon interference is a signature of coherent magnon interactions for
coherent information processing. In this work, we demonstrate programmable
real-time magnon interference, with examples of nearly perfect constructive and
destructive interference, between two remotely coupled yttrium iron garnet
spheres mediated by... | 2309.04289v1 |
2023-09-12 | Anisotropy-assisted magnon condensation in ferromagnetic thin films | We theoretically demonstrate that adding an easy-axis magnetic anisotropy
facilitates magnon condensation in thin yttrium iron garnet (YIG) films.
Dipolar interactions in a quasi-equilibrium state stabilize room-temperature
magnon condensation in YIG. Even though the out-of-plane easy-axis anisotropy
generally competes... | 2309.05982v3 |
2023-09-17 | Highly-tunable and strong nonreciprocity in coupled nonlinear cavity magnonics | Nonreciprocity, which violates Lorentz reciprocity, plays a pivotal role in
quantum information processing and networks. Nevertheless, achieving a desired
and highly-tunable level of nonreciprocity has proven to be a formidable
challenge. Here, we propose a coupled nonlinear cavity magnonic system,
consisting of two ca... | 2309.09245v2 |
2023-09-28 | Engineering Entangled Coherent States of Magnons and Phonons via a Transmon Qubit | We propose a scheme for generating and controlling entangled coherent states
(ECS) of magnons, i.e. the quanta of the collective spin excitations in
magnetic systems, or phonons in mechanical resonators. The proposed hybrid
circuit architecture comprises a superconducting transmon qubit coupled to a
pair of magnonic Yt... | 2309.16514v1 |
2023-10-13 | Magnon spin capacitor | In this work we show that a magnon spin capacitor can be realized at a
junction between two exchange coupled ferromagnets. In this junction, the
buildup of magnon spin over the junction is coupled to the difference in magnon
chemical potential, realizing the magnon spin analogue of an electrical
capacitor. The relation... | 2310.09064v3 |
2023-11-17 | Machine Learning Assisted Characterization of Labyrinthine Pattern Transitions | We present a comprehensive approach to characterizing labyrinthine structures
that often emerge as a final steady state in pattern forming systems. We employ
machine learning based pattern recognition techniques to identify the types and
locations of topological defects of the local stripe ordering to augment
conventio... | 2311.10558v1 |
2023-12-08 | Towards an experimental proof of the magnonic Aharonov$-$Casher effect | Controlling the phase and amplitude of spin waves in magnetic insulators with
an electric field opens the way to fast logic circuits with ultra-low power
consumption. One way to achieve such control is to manipulate the magnetization
of the medium via magnetoelectric effects. In experiments with magnetostatic
spin wave... | 2312.05113v1 |
2024-01-03 | Synthetically enhanced sensitivity using higher-order exceptional point and coherent perfect absorption | Sensors play a crucial role in advanced apparatuses and it is persistently
pursued to improve their sensitivities. Recently, the singularity of a
non-Hermitian system, known as the exceptional point (EP), has drawn much
attention for this goal. Response of the eigenfrequency shift to a perturbation
$\epsilon$ follows t... | 2401.01613v1 |
2024-01-17 | Giant Enhancement of Vacuum Friction in Spinning YIG Nanospheres | Experimental observations of vacuum radiation and vacuum frictional torque
are challenging due to their vanishingly small effects in practical systems.
For example, a rotating nanosphere in free space slows down due to friction
from vacuum fluctuations with a stopping time around the age of the universe.
Here, we show ... | 2401.09563v1 |
2024-01-22 | Generating magnon Bell states via parity measurement | We propose a scheme to entangle two magnon modes based on parity measurement.
In particular, we consider a system that two yttrium-iron-garnet spheres are
coupled to a $V$-type superconducting qutrit through the indirect interactions
mediated by cavity modes. An effective parity-measurement operator that can
project th... | 2401.11684v1 |
2024-01-22 | Theory of momentum-resolved magnon electron energy loss spectra: The case of Yttrium Iron Garnet | We explore the inelastic spectra of electrons impinging in a magnetic system.
The methodology here presented is intended to highlight the charge-dependent
interaction of the electron beam in a STEM-EELS experiment, and the local
vector potential generated by the magnetic lattice. This interaction shows an
intensity $10... | 2401.12302v2 |
2024-01-30 | Entropy production rate and correlations of cavity magnomechanical system | We present the irreversibility generated by a stationary cavity
magnomechanical system composed of a yttrium iron garnet (YIG) sphere with a
diameter of a few hundred micrometers inside a microwave cavity. In this
system, the magnons, i.e., collective spin excitations in the sphere, are
coupled to the cavity photon mod... | 2401.16857v1 |
2024-02-05 | Controlling magnon-photon coupling in a planar geometry | The tunability of magnons enables their interaction with various other
quantum excitations, including photons, paving the route for novel hybrid
quantum systems. Here, we study magnon-photon coupling using a high-quality
factor split-ring resonator and single-crystal yttrium iron garnet (YIG)
spheres at room temperatur... | 2402.03071v1 |
2024-02-07 | Breaking surface plasmon excitation constraint via surface spin waves | Surface plasmons in two-dimensional (2D) electron systems have attracted
great attention for their promising light-matter applications. However, the
excitation of a surface plasmon, in particular, transverse-electric (TE)
surface plasmon, remains an outstanding challenge due to the difficulty to
conserve energy and mom... | 2402.04626v1 |
2024-02-22 | Unraveling the origin of antiferromagnetic coupling at YIG/permalloy interface | We investigate the structural and electronic origin of antiferromagnetic
coupling in the Yttrium iron garnet (YIG) and permalloy (Py) bilayer system at
the atomic level. Ferromagnetic Resonance (FMR) reveal unique hybrid modes in
samples prepared with surface ion milling, indicative of antiferromagnetic
exchange coupli... | 2402.14553v2 |
2024-03-05 | Generation of gigahertz frequency surface acoustic waves in YIG/ZnO heterostructures | We study surface acoustic waves (SAWs) in yttrium iron garnet (YIG)/zinc
oxide (ZnO) heterostructures, comparing the results of a computationally
lightweight analytical model with time-resolved micro-focused Brillouin light
scattering data. Interdigital transducers (IDTs), with operational frequencies
in the gigahertz ... | 2403.03006v1 |
2024-03-23 | Spatial Control of Hybridization-Induced Spin-Wave Transmission Stop Band | Spin-wave (SW) propagation close to the hybridization-induced transmission
stop band is investigated within a trapezoid-shaped 200\,nm thick yttrium iron
garnet (YIG) film using time-resolved magneto-optic Kerr effect (TR-MOKE)
microscopy and broadband spin wave spectroscopy, supported by micromagnetic
simulations. The... | 2403.15840v1 |
2024-03-28 | Influence of disorder at Insulator-Metal interface on spin transport | Motivated by experimental work showing enhancement of spin transport between
Yttrium Iron Garnet and Platinum by a thin antiferromagnetic insulator between
them, we consider spin transport through the interface of a non-magnetic metal
and compensated antiferromagnetically ordered insulator and focus on the
significance... | 2403.19277v1 |
2024-04-03 | Enhancement of Magnon Transport by Superconductor Meissner Screening | Recent experiments observe the spin-wave-Meissner-current modes in
ferromagnetic insulator-superconductor heterostructures, in which the
coherently excited spin waves seemingly do not decay as usual beneath the
superconductor strip [Borst et al., Science 382, 430 (2023)]. We interpret this
phenomenon by demonstrating t... | 2404.02598v1 |
2022-03-03 | Optical Properties of Yttrium Gallium Garnet | We report measurements of the reflection and transmission spectra of 2% doped
Thulium Yttrium Gallium Garnet (Tm:YGG) using variable-angle spectroscopic
ellipsometry(VASE) over a wavelength range from 210 to 1680 nm (0.73-5.9 eV).
The well-known Tm resonances are identified and separated from the aggregate
data, allowi... | 2203.01689v1 |
2023-08-14 | Investigation of Phonon Lifetimes and Magnon-Phonon Coupling in YIG/GGG Hybrid Magnonic Systems in the Diffraction Limited Regime | Quantum memories facilitate the storage and retrieval of quantum information
for on-chip and long-distance quantum communications. Thus, they play a
critical role in quantum information processing and have diverse applications
ranging from aerospace to medical imaging fields. Bulk acoustic wave (BAW)
phonons are one of... | 2308.06896v2 |
2013-04-23 | Quantitative study of the spin Hall magnetoresistance in ferromagnetic insulator/normal metal hybrids | We experimentally investigate and quantitatively analyze the spin Hall
magnetoresistance effect in ferromagnetic insulator/platinum and ferromagnetic
insulator/nonferromagnetic metal/platinum hybrid structures. For the
ferromagnetic insulator we use either yttrium iron garnet, nickel ferrite or
magnetite and for the no... | 1304.6151v1 |
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