publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2000-09-15 | Gravitational waves from a spinning particle scattered by a relativistic star: Axial mode case | We study gravitational waves from a spinning test particle scattered by a
relativistic star using a perturbation method. The present analysis is
restricted to axial modes. By calculating the energy spectrum, the waveforms
and the total energy and angular momentum of gravitational waves, we analyze
the dependence of the... | 0009055v1 |
2014-11-12 | Magnonic Holographic Memory: from Proposal to Device | In this work, we present recent developments in magnonic holographic memory
devices exploiting spin waves for information transfer. The devices comprise a
magnetic matrix and spin wave generating/detecting elements placed on the edges
of the waveguides. The matrix consists of a grid of magnetic waveguides
connected via... | 1411.3388v1 |
2021-04-30 | A numerical exploration of signal detector arrangement in a spin-wave reservoir computing device | This paper studies numerically how the signal detector arrangement influences
the performance of reservoir computing using spin waves excited in a
ferrimagnetic garnet film. This investigation is essentially important since
the input information is not only conveyed but also transformed by the spin
waves into high-dime... | 2104.14915v1 |
2019-01-24 | Fundamentals of magnon-based computing | A disturbance in the local magnetic order of a solid body can propagate
across a material just like a wave. This wave is named spin wave, and its
quanta are known as magnons. Recently, physicists proposed the usage of magnons
to carry and process information instead of electrons as it is the case of
electronics. This t... | 1901.08934v1 |
2019-08-07 | Reconfigurable sub-micron spin-wave majority gate with electrical transducers | Spin waves are excitations in ferromagnetic media that have been proposed as
information carriers in hybrid spintronic devices with much lower operation
power than conventional charge-based electronics. Their wave nature can be
exploited in majority gates by using interference for computation. However, a
scalable spin-... | 1908.02546v3 |
2019-09-10 | Twisting and tweezing the spin wave: on vortices, skyrmions, helical waves, and the magnonic spiral phase plate | Spin waves are the low-energy excitations of magnetically ordered materials.
They are key elements in the stability analysis of the ordered phase and have a
wealth of technological applications. Recently, we showed that spin waves of a
magnetic nanowire may carry a definite amount of orbital angular momentum
components... | 1909.04457v2 |
2021-11-30 | Comparison of spin-wave transmission in parallel and antiparallel magnetic configurations | Parallel (P) and antiparallel (AP) configurations are widely applied in
magnetic heterostructures and have significant impacts on the spin-wave
transmission in magnonic devices. In the present study, a theoretical
investigation was conducted into the transmission of exchange-dominated spin
waves with nanoscale waveleng... | 2111.15091v2 |
2011-03-11 | Spin-orbital resonating valence bond liquid on a triangular lattice: Evidence from finite-cluster diagonalization | We investigate the ground state of the $d^1$ spin-orbital model for triply
degenerate $t_{2g}$ orbitals on a triangular lattice which unifies intrinsic
frustration of spin and orbital interactions with geometrical frustration.
Using full or Lanczos exact diagonalization of finite clusters we establish
that the ground s... | 1103.2319v1 |
2017-01-23 | Electrically driving nuclear spin qubits with microwave photonic bangap resonators | The electronic and nuclear spin degrees of freedom for donor impurities in
semiconductors form ultra coherent two-level systems that are useful for
quantum information applications. Spins naturally have magnetic dipoles, so
alternating current (AC) magnetic fields are frequently used to drive spin
transitions and perfo... | 1701.06650v1 |
2016-07-04 | The ubiquitous photonic wheel | A circularly polarized electromagnetic plane wave carries an electric field
that rotates clockwise or counterclockwise around the propagation direction of
the wave. According to the handedness of this rotation, its \emph{longitudinal}
spin angular momentum density is either parallel or antiparallel to the
propagation o... | 1607.00792v1 |
2018-07-02 | Emission and Propagation of Multi-Dimensional Spin Waves with nanoscale wavelengths in Anisotropic Spin Textures | Spin waves offer intriguing novel perspectives for computing and signal
processing, since their damping can be lower than the Ohmic losses in
conventional CMOS circuits. For controlling the spatial extent and propagation
of spin waves on the actual chip, magnetic domain walls show considerable
potential as magnonic wav... | 1807.00897v2 |
2017-06-19 | Pinned domain wall oscillator as tunable direct current spin wave emitter | Spin waves are perturbations in the relative orientation of magnetic moments
in a continuous magnetic system, which have been proposed as a new kind of
information carrier for spin-based low power applications. For this purpose, a
major obstacle to overcome is the energy-efficient excitation of coherent short
wavelengt... | 1706.05873v1 |
2024-02-24 | Steerable current-driven emission of spin waves in magnetic vortex pairs | The efficient excitation of spin waves is a key challenge in the realization
of magnonic devices. We demonstrate the current-driven generation of spin waves
in antiferromagnetically coupled magnetic vortices. We employ time-resolved
scanning transmission X-ray microscopy (TR-STXM) to directly image the emission
of spin... | 2402.15831v1 |
2002-12-04 | Spin-resolved off-specular neutron scattering from magnetic domain walls using the polarized $^3He$ gas spin filter | We report on the use of the polarized $^3$He gas filter and neutron resonant
enhancement techniques for the measurement of spin-polarized diffuse neutron
scattering due to ferromagnetic domains. A CoO/Co exchange biased bilayer was
grown on a Ti/Cu/$Al_2O_3$ neutron resonator template. The system is cooled in
an applie... | 0212092v1 |
2011-03-02 | Effect of current hysteresis on the spin polarization of current in a paramagnetic resonant tunneling diode | A spin-dependent quantum transport is investigated in a paramagnetic resonant
tunneling diode (RTD) based on a Zn$_{1-x}$Mn$_x$Se/ZnBeSe heterostructure.
Using the Wigner-Poisson method and assuming the two-current model we have
calculated the current-voltage characteristics, potential energy profiles and
electron dens... | 1103.0408v1 |
2017-05-26 | On the Spin States of Habitable Zone Exoplanets Around M Dwarfs: The Effect of a Near-Resonant Companion | One longstanding problem for the potential habitability of planets within M
dwarf systems is their likelihood to be tidally locked in a synchronously
rotating spin state. This problem thus far has largely been addressed only by
considering two objects: the star and the planet itself. However, many systems
have been fou... | 1705.09685v3 |
2017-01-19 | Obliquity evolution of the minor satellites of Pluto and Charon | New Horizons mission observations show that the small satellites Styx, Nix,
Kerberos and Hydra, of the Pluto-Charon system, have not tidally spun-down to
near synchronous spin states and have high obliquities with respect to their
orbit about the Pluto-Charon binary (Weaver et al. 2016). We use a damped
mass-spring mod... | 1701.05594v2 |
2020-07-06 | Transverse and Longitudinal Spin-Torque Ferromagnetic Resonance for Improved Measurements of Spin-Orbit Torques | Spin-torque ferromagnetic resonance (ST-FMR) is a common method used to
measure spin-orbit torques (SOTs) in heavy metal/ferromagnet bilayer
structures. In the course of a measurement, other resonant processes such as
spin pumping (SP) and heating can cause spin current or heat flows between the
layers, inducing additi... | 2007.02850v1 |
2023-06-09 | Secular dynamics of stellar spin driven by planets inside Kozai-Lidov resonance | In many exoplanetary systems with `hot Jupiters', it is observed that the
spin axes of host stars are highly misaligned to planetary orbital axes. In
this study, a possible channel is investigated for producing such a
misalignment under a hierarchical three-body system where the evolution of
stellar spin is subjected t... | 2306.05639v1 |
2023-07-12 | Cavity-mediated entanglement of parametrically driven spin qubits via sidebands | We consider a pair of quantum dot-based spin qubits that interact via
microwave photons in a superconducting cavity, and that are also parametrically
driven by separate external electric fields. For this system, we formulate a
model for spin qubit entanglement in the presence of mutually off-resonant
qubit and cavity f... | 2307.06067v1 |
2023-12-19 | Cavity-resonated detection of spin polarization in a microfabricated atomic vapor cell | We demonstrate continuous Pound-Drever-Hall (PDH) nondestructive monitoring
of the electron spin polarization of an atomic vapor in a microfabricated vapor
cell within an optical resonator. The two-chamber silicon and glass cell
contains $^{87}$Rb and 1.3 amagat of N$_{2}$ buffer gas, and is placed within a
planar opti... | 2312.12256v1 |
2010-12-17 | Electrically detected magnetic resonance of neutral donors interacting with a two-dimensional electron gas | We have measured the electrically detected magnetic resonance of
channel-implanted donors in silicon field-effect transistors in resonant X-
($9.7\:$GHz) and W-band ($94\:$GHz) microwave cavities, with corresponding
Zeeman fields of $0.35\:$T and $3.36\:$T, respectively. It is found that the
conduction electron resonan... | 1012.3811v1 |
2012-12-21 | Detectability of the second resonance of low-scale string models at the LHC | Low-scale string models are phenomenological models in String Theory, in
which the string scale M_s is of the order of TeV. String excited states which
are characteristic modes in low-scale string models can be observed as
resonances in dijet invariant mass distributions at the LHC. If a new heavy
resonance is discover... | 1212.5372v3 |
2014-02-12 | Nuclear magnetic resonances in (In,Ga)As/GaAs quantum dots studied by resonant optical pumping | The photoluminescence polarizations of (In,Ga)As/GaAs quantum dots annealed
at different temperatures are studied as a function of external magnetic field
(Hanle curves). In these dependencies, remarkable resonant features appear due
to all-optical nuclear magnetic resonances (NMR) for optical excitation with
modulated... | 1402.2727v2 |
2015-01-03 | Instrument for in-situ orientation of superconducting thin-film resonators used for electron-spin resonance experiments | When used in Electron-Spin Resonance (ESR) measurements, superconducting
thin-film resonators must be precisely oriented relative to the external
magnetic field in order to prevent the trapping of magnetic flux and the
associated degradation of resonator performance. We present a compact design
solution for this proble... | 1501.01596v2 |
2022-08-12 | Observation of magnetic Feshbach resonances between Cs and ${}^{173}$Yb | We report the first observation of magnetic Feshbach resonances between
${}^{173}$Yb and $^{133}$Cs. In a mixture of Cs atoms prepared in the $(f=3,
m_f=3)$ state and unpolarized fermionic ${}^{173}$Yb we observe resonant atom
loss due to two sets of magnetic Feshbach resonances around 622~G and 702~G.
Resonances for i... | 2208.06291v1 |
2013-07-30 | Electrodynamics of a ring-shaped spiral resonator | We present analytical, numerical and experimental investigations of
electromagnetic resonant modes of a compact monofilar Archimedean spiral
resonator shaped in a ring, with no central part. Planar spiral resonators are
interesting as components of metamaterials for their compact deep-subwavelength
size. Such resonator... | 1307.7959v1 |
2014-10-08 | Tailoring dielectric resonator geometries for directional scattering and Huygens' metasurfaces | In this paper we describe a methodology for tailoring the design of
metamaterial dielectric resonators, which represent a promising path toward
low-loss metamaterials at optical frequencies. We first describe a procedure to
decompose the far field scattered by subwavelength resonators in terms of
multipolar field compo... | 1410.2315v2 |
2017-04-25 | Unified Treatment of Spin Torques using a Coupled Magnetisation Dynamics and Three-Dimensional Spin Current Solver | A three-dimensional spin current solver based on a generalised spin
drift-diffusion description, including the spin Hall effect, is integrated with
a magnetisation dynamics solver. The resulting model is shown to simultaneously
reproduce the spin-orbit torques generated using the spin Hall effect, spin
pumping torques ... | 1704.07758v2 |
2019-06-24 | Origin of the chromospheric three-minute oscillations in sunspot umbrae | Sunspot umbrae show a change in the dominant period of their oscillations
from five minutes in the photosphere to three minutes in the chromosphere. In
this paper, we explore the two most popular models proposed to explain the
three-minute oscillations: the chromospheric acoustic resonator and the
propagation of waves ... | 1906.09797v1 |
2023-03-14 | Electromagnetic Waves Propagation along Tangentially Magnetised Bihyrotropic Layer (with Example of Spin Waves in Ferrite Plate) | Analytically, without magnetostatic approximation, the problem of
electromagnetic wave propagation along arbitrary direction in a tangentially
magnetized bihyrotropic layer has been solved. It is found that one can bring
the Maxwell equations for this problem to the fourth order differential
equation and the obtained b... | 2303.08800v1 |
2023-08-07 | Water-Wave Vortices and Skyrmions | Topological wave structures -- phase vortices, skyrmions, merons, etc. -- are
attracting enormous attention in a variety of quantum and classical wave
fields. Surprisingly, these structures have never been properly explored in the
most obvious example of classical waves: water-surface (gravity-capillary)
waves. Here we... | 2308.03520v2 |
2002-07-06 | Unified Theory of Bivacuum, Particles Duality, Fields & Time. New Bivacuum Mediated Interaction, Overunity Devices, Cold Fusion & Nucleosynthesis | New concept of Bivacuum is introduced, as a dynamic matrix of the Universe,
composed from sub-quantum particles and antiparticles, forming vortical
structures. These structures are presented by continuum of dipoles, each dipole
containing a pair of correlated torus and antitorus: V(+) and V(-) of the
opposite energy/ma... | 0207027v5 |
2015-04-09 | Measurement of double polarisation asymmetries in $ω$-photoproduction | The first measurements of the beam-target-helicity-asymmetries $E$ and $G$ in
the photoproduction of $\omega$-mesons off protons at the CBELSA/TAPS
experiment are reported. $E$ ($G$) was measured using circularly (linearly)
polarised photons and a longitudinally polarised target. $E$ was measured over
the photon energy... | 1504.02221v2 |
2019-03-09 | Spin-wave thermodynamics of square-lattice antiferromagnets revisited | Modifying the conventional spin-wave theory in a novel manner based on the
Wick decomposition, we present an elaborate thermodynamics of square-lattice
quantum antiferromagnets. Our scheme is no longer accompanied by the notorious
problem of an artificial transition to the paramagnetic state inherent in
modified spin w... | 1903.03769v1 |
2022-03-24 | Writable spin wave nanochannels in an artificial-spin-ice-mediated ferromagnetic thin film | Magnonics, which employs spin-waves to transmit and process information, is a
promising venue for low-power data processing. One of the major challenges is
the local control of the spin-wave propagation path. Here, we introduce the
concept of writable magnonics by taking advantage of the highly flexible
reconfigurabili... | 2203.12812v2 |
2006-02-14 | The three-wave coupling coefficients for a cold magnetized plasma | The resonant interaction between three waves in a uniform magnetized plasma
is considered. Using the somewhat inaccessible result of the general theory we
deduce the explicit expressions for the coupling coefficients of a cold
magnetized two-component plasma. | 0602089v1 |
2006-05-19 | Nonlinear interaction between three inertial Alfvén waves | The resonant coupling between Alfv\'{e}n waves is reconsidered. New results
are found for cold plasmas there temperature effects are negligible. | 0605169v1 |
2012-07-06 | Hadron Spectroscopy, Results and Ideas | New results on the spectrum of nucleon resonances from the Bonn-Gatchina
partial wave analysis are presented, and possible interpretations are
discussed. | 1207.1601v1 |
2014-07-24 | More Kronoseismology with Saturn's rings | In a previous paper (Hedman and Nicholson 2013), we developed tools that
allowed us to confirm that several of the waves in Saturn's rings were likely
generated by resonances with fundamental sectoral normal modes inside Saturn
itself. Here we use these same tools to examine eight additional waves that are
probably gen... | 1407.6702v2 |
2017-07-17 | Electrostatic and whistler instabilities excited by an electron beam | The electron beam-plasma system is ubiquitous in the space plasma
environment. Here, using a Darwin particle-in-cell method, the excitation of
electrostatic and whistler instabilities by a gyrating electron beam is studied
in support of recent laboratory experiments. It is assumed that the total
plasma frequency $\omeg... | 1707.05346v1 |
2018-09-28 | Strong instability of standing waves for a system NLS with quadratic interaction | We study the strong instability of standing waves for a system of nonlinear
Schr\"odinger equations with quadratic interaction under the mass resonance
condition in dimension $d=5$. | 1810.00676v1 |
2020-12-11 | Mixed properties of magnetohydrodynamic waves undergoing resonant absorption in the cusp continuum | Observations of magnetohydrodynamic (MHD) waves in the structured solar
atmosphere have shown that these waves are damped and can thus contribute to
atmospheric heating. In this paper, we focus on the damping mechanism of
resonant absorption in the cusp continuum. This process takes places when waves
travel through an ... | 2012.06303v1 |
2022-07-23 | Dynamics of NEMS Resonators across Dissipation Limits | The oscillatory dynamics of nanoelectromechanical systems (NEMS) is at the
heart of many emerging applications in nanotechnology. For common NEMS, such as
beams and strings, the oscillatory dynamics is formulated using a
dissipationless wave equation derived from elasticity. Under a harmonic ansatz,
the wave equation g... | 2207.11411v1 |
2016-01-30 | Strongly-coupled nanotube electromechanical resonators | Coupling an electromechanical resonator with carbon-nanotube quantum dots is
a significant method to control both the electronic charge and the spin quantum
states. By exploiting a novel micro-transfer technique, we fabricate two
strongly-coupled and electrically-tunable mechanical resonators on a single
carbon nanotub... | 1602.00082v1 |
2022-09-28 | A novel Machine-Learning method for spin classification of neutron resonances | The performance of nuclear reactors and other nuclear systems depends on a
precise understanding of the neutron interaction cross sections for materials
used in these systems. These cross sections exhibit resonant structure whose
shape is determined in part by the angular momentum quantum numbers of the
resonances. The... | 2209.14403v2 |
2018-09-05 | Constraining black-hole spins with gravitational wave observations | The observation of gravitational-wave signals from merging black-hole
binaries enables direct measurement of the properties of the black holes. An
individual observation allows measurement of the black-hole masses, but only
limited information about either the magnitude or orientation of the black hole
spins is availab... | 1809.01401v2 |
2014-09-03 | Theory of coupled spin-charge transport due to spin-orbit interaction in inhomogeneous two-dimensional electron liquids | Spin-orbit interactions in two-dimensional electron liquids are responsible
for many interesting transport phenomena in which particle currents are
converted to spin polarizations and spin currents and viceversa. Prime examples
are the spin Hall effect, the Edelstein effect, and their inverses. By similar
mechanisms it... | 1409.1202v1 |
2005-06-20 | Nonlinear spin relaxation in strongly nonequilibrium magnets | A general theory is developed for describing the nonlinear relaxation of spin
systems from a strongly nonequilibrium initial state, when, in addition, the
sample is coupled to a resonator. Such processes are characterized by nonlinear
stochastic differential equations. This makes these strongly nonequilibrium
processes... | 0506489v1 |
2009-08-03 | A quantum spin transducer based on nano electro-mechancial resonator arrays | Implementation of quantum information processing faces the contradicting
requirements of combining excellent isolation to avoid decoherence with the
ability to control coherent interactions in a many-body quantum system. For
example, spin degrees of freedom of electrons and nuclei provide a good quantum
memory due to t... | 0908.0316v1 |
2009-09-02 | Spin relaxation and combined resonance in two-dimensional electron systems with spin-orbit disorder | Disorder in spin-orbit (SO) coupling is an important feature of real
low-dimensional electron structures. We study spin relaxation due to such a
disorder as well as resulting abilities of spin manipulation. The spin
relaxation reveals quantum effects when the spatial scale of the randomness is
smaller than the electron... | 0909.0352v1 |
2009-10-08 | Proposal for Efficient Generation of Spin-Polarized Current in Silicon | We propose a spin-dependent resonant tunneling structure to efficiently
inject spin-polarized current into silicon (Si). By means of a heavily doped
polycrystalline Si (Poly-Si) between the ferromagnetic metal (FM) and Si to
reduce the Schottky barrier resistance, we estimated raising the tunneling
current density up t... | 0910.1611v2 |
2010-04-01 | Electron spin dynamics and electron spin resonance in graphene | A theory of spin relaxation in graphene including intrinsic, Bychkov-Rashba,
and ripple spin-orbit coupling is presented. We find from spin relaxation data
by Tombros et al. [Nature 448, 571 (2007).] that intrinsic spin-orbit coupling
dominates over other contributions with a coupling constant of 3.7 meV.
Although it i... | 1004.0210v1 |
2010-10-08 | Time-resolved detection of spin-transfer-driven ferromagnetic resonance and spin torque measurement in magnetic tunnel junctions | Several experimental techniques have been introduced in recent years in
attempts to measure spin transfer torque in magnetic tunnel junctions (MTJs).
The dependence of spin torque on bias is important for understanding
fundamental spin physics in magnetic devices and for applications. However,
previous techniques have ... | 1010.1777v1 |
2011-10-10 | Spin Manipulation and Relaxation in Spin-Orbit Qubits | We derive a generalized form of the Electric Dipole Spin Resonance (EDSR)
Hamiltonian in the presence of the spin-orbit interaction for single spins in
an elliptic quantum dot (QD) subject to an arbitrary (in both direction and
magnitude) applied magnetic field. We predict a nonlinear behavior of the Rabi
frequency as ... | 1110.2193v1 |
2012-11-12 | Dressed-State Polarization Transfer between Bright & Dark Spins in Diamond | Under ambient conditions, spin impurities in solid-state systems are found in
thermally-mixed states and are optically "dark", i.e., the spin states cannot
be optically controlled. Nitrogen-vacancy (NV) centers in diamond are an
exception in that the electronic spin states are "bright", i.e., they can be
polarized by o... | 1211.2749v1 |
2013-01-31 | Effects of Transverse Magnetic Anisotropy on Current-Induced Spin Switching | Spin-polarized transport through bistable magnetic adatoms or single-molecule
magnets (SMMs), which exhibit both uniaxial and transverse magnetic anisotropy,
is considered theoretically. The main focus is on the impact of transverse
anisotropy on transport characteristics and the adatom's/SMM's spin. In
particular, we ... | 1302.1074v1 |
2013-11-23 | Electron spin resonance and spin-valley physics in a silicon double quantum dot | Silicon quantum dots are a leading approach for solid-state quantum bits.
However, developing this technology is complicated by the multi-valley nature
of silicon. Here we observe transport of individual electrons in a silicon
CMOS-based double quantum dot under electron spin resonance. An anticrossing of
the driven do... | 1311.5937v2 |
2016-10-21 | Spin transport and dynamics in all-oxide perovskite La$_{2/3}$Sr$_{1/3}$MnO$_3$/SrRuO$_3$ bilayers probed by ferromagnetic resonance | Thin films of perovskite oxides offer the possibility of combining emerging
concepts of strongly correlated electron phenomena and spin current in magnetic
devices. However, spin transport and magnetization dynamics in these complex
oxide materials are not well understood. Here, we experimentally quantify spin
transpor... | 1610.06661v1 |
2020-04-03 | Spin-Excitations Anisotropy in the Bilayer Iron-Based Superconductor CaKFe$_4$As$_4$ | We use polarized inelastic neutron scattering to study the spin-excitations
anisotropy in the bilayer iron-based superconductor CaKFe$_4$As$_4$ ($T_c$ = 35
K). In the superconducting state, both odd and even $L-$modulations of spin
resonance have been observed in our previous unpolarized neutron scattering
experiments ... | 2004.01405v1 |
2017-02-13 | Spin Pumping and Inverse Spin Hall Voltages from Dynamical Antiferromagnets | Dynamical antiferromagnets pump spins efficiently into adjacent conductors as
ferromagnets. The high antiferromagnetic resonance frequencies represent a
challenge for experimental detection, but magnetic fields can reduce these
resonance frequencies. We compute the inverse spin Hall voltages resulting from
dynamical sp... | 1702.03779v1 |
2020-09-03 | Parallel selective nuclear spin addressing for fast high-fidelity quantum gates | Due to their long coherence times, nuclear spins have gained considerable
attention as physical qubits. Two-qubit gates between nuclear spins of distinct
resonance frequencies can be mediated by electron spins, usually employing a
sequence of electron-nuclear gates. Here we present a different approach
inspired by, but... | 2009.01727v2 |
2019-07-11 | Image of dynamic local exchange interactions in the dc magnetoresistance of spin-polarized current through a dopant | We predict strong, dynamical effects in the dc magnetoresistance of current
flowing from a spin-polarized electrical contact through a magnetic dopant in a
nonmagnetic host. Using the stochastic Liouville formalism we calculate
clearly-defined resonances in the dc magnetoresistance when the applied
magnetic field match... | 1907.05509v1 |
2020-12-02 | Nuclear spin readout in a cavity-coupled hybrid quantum dot-donor system | Nuclear spins show long coherence times and are well isolated from the
environment, which are properties making them promising for quantum information
applications. Here, we present a method for nuclear spin readout by probing the
transmission of a microwave resonator. We consider a single electron in a
silicon quantum... | 2012.01322v2 |
2021-03-09 | Self-induced spin-orbit torques in metallic ferromagnets | We present a phenomenological theory of spin-orbit torques in a metallic
ferromagnet with spin-relaxing boundaries. The model is rooted in the coupled
diffusion of charge and spin in the bulk of the ferromagnet, where we account
for the anomalous Hall effects as well as the anisotropic magnetoresistance in
the correspo... | 2103.05743v2 |
2022-02-08 | Precession of entangled spin and pseudospin in double quantum dots | Quantum dot spin valves are characterized by exchange fields which induce
spin precession and generate current spin resonances even in absence of spin
splitting. Analogous effects have been studied in double quantum dots, in which
the orbital degree of freedom, the pseudospin, replaces the spin in the valve
configurati... | 2202.04186v1 |
2022-09-29 | Flopping-mode spin qubit in a Si-MOS quantum dot | Spin qubits based on silicon metal-oxide semiconductor (Si-MOS) quantum dots
(QDs) are promising platforms for large-scale quantum computers. To control
spin qubits in QDs, electric dipole spin resonance (EDSR) has been most
commonly used in recent years. By delocalizing an electron across a double
quantum dots charge ... | 2209.14531v2 |
2023-11-06 | Resonant tunneling and quantum interference of a two-spin system in silicon tunnel FETs | We investigated the resonant tunneling of a two-spin system through the
double quantum dots in Al-N-implanted silicon tunnel FETs (TFETs) by
electrical-transport measurements and Landau-Zener-St\"{u}ckelberg-Majorana
interferometry with and without magnetic fields. Our experimental results
revealed the coexistence of s... | 2311.02885v1 |
2004-11-09 | Spin-dependent resonant tunneling through quantum-well states in magnetic metallic thin films | Quantum-well (QW) states in {\it nonmagnetic} metal layers contained in
magnetic multilayers are known to be important in spin-dependent transport, but
the role of QW states in {\it magnetic} layers remains elusive. Here we
identify the conditions and mechanisms for resonant tunneling through QW states
in magnetic laye... | 0411233v1 |
2006-02-28 | Photon-assisted electron transmission resonance through a quantum well with spin-orbit coupling | Using the effective-mass approximation and Floquet theory, we study the
electron transmission over a quantum well in semiconductor heterostructures
with Dresselhaus spin-orbit coupling and an applied oscillation field. It is
demonstrated by the numerical evaluations that Dresselhaus spin-orbit coupling
eliminates the s... | 0602658v1 |
2010-12-22 | Rashba field in GaN | We discuss problem of Rashba field in bulk GaN and in GaN/AlGaN
two-dimensional electron gas, basing on results of X-band microwave resonance
experiments. We point at large difference in spin-orbit coupling between bulk
material and heterostructures. We observe coupled plasmon-cyclotron resonance
from the two-dimension... | 1012.4999v1 |
2011-03-13 | Micromagnetic understanding of stochastic resonance driven by spin-transfertorque | In this paper, we employ micromagnetic simulations to study non-adiabatic
stochastic resonance (NASR) excited by spin-transfer torque in a
super-paramagnetic free layer nanomagnet of a nanoscale spin valve. We find
that NASR dynamics involves thermally activated transitions among two static
states and a single dynamic ... | 1103.2536v1 |
2011-11-26 | Evidence for a negative-parity spin-doublet of nucleon resonances at 1.88\,GeV | Evidence is reported for two nucleon resonances with spin-parity $J^P=1/2^-$
and $J^P=3/2^-$ at a mass just below 1.9\,GeV. The evidence is derived from a
coupled-channel analysis of a large number of pion and photo-produced
reactions. The two resonances are nearly degenerate in mass with two resonances
of the same spi... | 1111.6151v2 |
2012-04-27 | Resonant harmonic generation and collective spin rotations in electrically driven quantum dots | Spin rotations induced by an AC electric field in a two-electron double
quantum dot are studied by an exact numerical solution of the time dependent
Schroedinger equation in the context of recent electric dipole spin resonance
experiments based on the Pauli blockade. We demonstrate that the splitting of
the main resona... | 1204.6208v2 |
2012-10-03 | Numerical study of spin-dependent transition rates within pairs of dipolar and strongly exchange coupled spins with (s=1/2) during magnetic resonant excitation | The effect of dipolar and exchange interactions within pairs of paramagnetic
electronic states on Pauli-blockade-controlled spin-dependent transport and
recombination rates during magnetic resonant spin excitation is studied
numerically using the superoperator Liouville-space formalism. The simulations
reveal that spin... | 1210.0950v2 |
2013-01-21 | Modulation effect on the spin Hall resonance | The effect of a weak electrical modulation on spin Hall resonance is
presented here. In presence of the magnetic field normal to the plane of the
motion of electron, the Landau levels are formed which get broadened due to the
weak modulation. The width of the Landau levels broadening are periodic with
the inverse magne... | 1301.4841v1 |
2014-11-22 | Quantification of the spin-Hall anti-damping torque with a resonance spectrometer | We present a simple technique using a cavity-based resonance spectrometer to
quantify the anti-damping torque due to the spin Hall effect. Modification of
ferromagnetic resonance is observed as a function of small DC current in
sub-mm-wide strips of bilayers, consisting of magnetically soft FeGaB and
strong spin-Hall m... | 1411.6166v1 |
2015-03-20 | YBCO microwave resonators for strong collective coupling with spin ensembles | Coplanar microwave resonators made of 330 nm-thick superconducting YBCO have
been realized and characterized in a wide temperature ($T$, 2-100 K) and
magnetic field ($B$, 0-7 T) range. The quality factor $Q_L$ exceeds 10$^4$
below 55 K and it slightly decreases for increasing fields, remaining 90$\%$ of
$Q_L(B=0)$ for ... | 1503.06145v2 |
2016-08-03 | Impurity-induced smearing of the spin resonance peak in Fe-based superconductors | The spin resonance peak in the iron-based superconductors is observed in
inelastic neutron scattering experiments and agrees well with predicted results
for the extended s-wave ($s_\pm$) gap symmetry. On the basis of four-band and
three-orbital tight binding models we study the effect of nonmagnetic disorder
on the res... | 1608.01157v1 |
2017-08-29 | Antiferromagnetic resonance excited by oscillating electric currents | In antiferromagnetic materials the order parameter exhibits resonant modes at
frequencies that can be in the terahertz range, making them interesting
components for spintronic devices. Here, it is shown that antiferromagnetic
resonance can be excited using the inverse spin-Hall effect in a system
consisting of an antif... | 1708.08965v2 |
2017-12-08 | A Novel Effect of Electron Spin Resonance on Electrical Resistivity | We extend the well known phenomenon of magnetoresistance (extra resistivity
of materials in transverse magnetic field) to a new and unexplored regime where
in addition to a transverse magnetic field, a transverse AC field of resonant
frequency is also applied. In a magnetic field, electron spin levels are Zeeman
split.... | 1712.03062v1 |
2017-12-08 | Spin polarization through Floquet resonances in a driven central spin model | Adiabatically varying the driving frequency of a periodically-driven
many-body quantum system can induce controlled transitions between resonant
eigenstates of the time-averaged Hamiltonian, corresponding to adiabatic
transitions in the Floquet spectrum and presenting a general tool in quantum
many-body control. Using ... | 1712.03117v2 |
2018-06-21 | Spin transfer torque induced paramagnetic resonance | We show how the spin-transfer torque generated by an ac voltage may be used
to excite a paramagnetic resonance of an atomic spin deposited on a metallic
surface. This mechanism is independent of the environment of the atom and may
explain the ubiquity of the paramagnetic resonance reported by Baumann
$\textit{et al.}$ ... | 1806.08260v2 |
2017-06-13 | Mesoscopic magnetic resonance spectroscopy with a remote spin sensor | Quantum sensing based on nitrogen-vacancy (NV) centers in diamond has been
developed as a powerful tool for microscopic magnetic resonance. However, the
reported sensor-to-sample distance is limited within tens of nanometers because
the signal of spin fluctuation decreases cubically with the increasing
distance. Here w... | 1706.03939v2 |
2017-10-28 | Sensitive spin detection using an on-chip SQUID-waveguide resonator | Precise detection of spin resonance is of paramount importance to achieve
coherent spin control in quantum computing. We present a novel setup for spin
resonance measurements, which uses a dc-SQUID flux detector coupled to an
antenna from a coplanar waveguide. The SQUID and the waveguide are fabricated
from 20~nm Nb th... | 1710.10506v1 |
2020-03-10 | Spin detection via parametric frequency conversion in a membrane resonator | Recent demonstrations of ultracoherent nanomechanical resonators introduce
the prospect of new protocols for solid state sensing applications. Here, we
propose to use two coupled ultracoherent resonator modes on a Si$_3$N$_4$
membrane for the detection of small nuclear spin ensembles. To this end, we
employ parametric ... | 2003.04557v2 |
2019-08-15 | Excitation of Tumbling in Phobos and Deimos | Mass-spring model simulations are used to investigate past spin states of a
viscoelastic Phobos and Deimos. From an initially tidally locked state, we find
crossing of a spin-orbit resonance with Mars or a mean motion resonance with
each other does not excite tumbling in Phobos or Deimos. However, once tumbling
our sim... | 1908.05720v2 |
2019-10-10 | Slow Nonthermalizing Dynamics in a Quantum Spin Glass | Spin glasses and many-body localization (MBL) are prime examples of
ergodicity breaking, yet their physical origin is quite different: the former
phase arises due to rugged classical energy landscape, while the latter is a
quantum-interference effect. Here we study quantum dynamics of an isolated 1d
spin-glass under ap... | 1910.04421v2 |
2023-04-03 | Magnetic resonance in the quasi-2D square lattice easy-plane antiferromagnet Ba$_2$MnGe$_2$O$_7$ | We report results of a multi-frequency (0.8-60 GHz) electron spin resonance
study of the spin dynamics in the quasi-2D square lattice antiferromagnet
Ba$_2$MnGe$_2$O$_7$ both in antiferromagnetically ordered and paramagnetic
phases. We directly observe two zero-field gaps in the excitation spectrum of
the ordered phase... | 2304.01280v1 |
2023-06-05 | Normal single-spin asymmetries in electron-proton scattering: two-photon exchange with intermediate state resonances | We calculate the beam ($B_n$) and target ($A_n$) normal single-spin
asymmetries in electron-proton elastic scattering from two-photon exchange
amplitudes with resonance intermediate states of spin-parity $1/2^\pm$ and
$3/2^\pm$ and mass $W \lesssim 1.8$ GeV. The latest CLAS exclusive meson
electroproduction data are us... | 2306.02540v1 |
2024-02-28 | Coherent control of terahertz-scale spin resonances using optical spin-orbit torques | Using optically generated spin-orbit torques generated by the heavy metal Pt
we demonstrate coherent control of GHz ferromagnetic resonances in Pt/Co/Pt
multilayers as well as sub-THz exchange resonances in [Gd/Co]$_2$ multilayers.
Employing a double-pump setup, we show that depending on the helicities of the
pump puls... | 2402.18671v1 |
2011-04-10 | Spatial Damping of Propagating Kink Waves Due to Resonant Absorption: Effect of Background Flow | Observations show the ubiquitous presence of propagating magnetohydrodynamic
(MHD) kink waves in the solar atmosphere. Waves and flows are often observed
simultaneously. Due to plasma inhomogeneity in the perpendicular direction to
the magnetic field, kink waves are spatially damped by resonant absorption. The
presence... | 1104.1791v1 |
2013-04-12 | Kronoseismology: Using density waves in Saturn's C ring to probe the planet's interior | Saturn's C ring contains multiple spiral patterns that appear to be density
waves driven by periodic gravitational perturbations. In other parts of
Saturn's rings, such waves are generated by Lindblad resonances with Saturn's
various moons, but most of the wave-like C-ring features are not situated near
any strong reso... | 1304.3735v2 |
2021-07-16 | Three-dimensionality of the triadic resonance instability of a plane inertial wave | We analyze theoretically and experimentally the triadic resonance instability
(TRI) of a plane inertial wave in a rotating fluid. Building on the classical
triadic interaction equations between helical modes, we show by numerical
integration that the maximum growth rate of the TRI is found for secondary
waves that do n... | 2107.07937v1 |
2017-11-30 | Oblique propagation of longitudinal spin-electron acoustic waves under the influence of the Coulomb exchange interaction and the quantum Bohm potential | Influence of the exchange interaction on the properties of the spin-electron
acoustic waves at the oblique propagation of waves relatively to the external
magnetic field in the magnetically ordered metals is studied. The spectra of
the Langmuir wave and the Trivelpiece-Gould wave are also considered. It is
well-known t... | 1711.11308v1 |
2003-11-10 | Long-Lived Spin Coherence States | We study evolution of electron spin coherence having non-homogeneous
direction of spin polarization vector in semiconductor heterostructures. It is
found that the electron spin relaxation time due to the D'yakonov-Perel'
relaxation mechanism essentially depends on the initial spin polarization
distribution. This effect... | 0311223v1 |
2004-10-20 | Spin-Transfer Torque and Electron-Magnon Scattering | According to the spin-torque model, current-driven magnetic dynamics in
ferromagnetic multilayers is determined by the transfer of electron spin
perpendicular to the layers' magnetizations. By separating the largest
contributions to the magnetic dynamics, we demonstrate that the dominant effect
of spin-torque is rather... | 0410520v1 |
2007-01-09 | Spin Supercurrent | We review the main properties of Spin Waves condensation to a coherent
quantum state, named Homogeneously Precessing Domain (HPD). We describe the
long range coherent transport of magnetization by Spin Supercurrent in
antiferromagnetic superfluid 3He. This quantum phenomenon was discovered 20
years ago. Since then, man... | 0701182v1 |
2007-09-13 | Spin polarization in biased Rashba-Dresselhaus two-dimensional electron systems | Based on spin-charge coupled drift-diffusion equations, which are derived
from kinetic equations for the spin-density matrix in a rigorous manner, the
electric-field-induced nonequilibrium spin polarization is treated for a
two-dimensional electron gas with both Rashba and Dresselhaus spin-orbit
coupling. Most emphasis... | 0709.2054v1 |
2008-08-01 | Electric-field driven long-lived spin excitations on a cylindrical surface with spin-orbit interaction | Based on quantum-kinetic equations, coupled spin-charge drift-diffusion
equations are derived for a two-dimensional electron gas on a cylindrical
surface. Besides the Rashba and Dresselhaus spin-orbit interaction, the elastic
scattering on impurities, and a constant electric field are taken into account.
From the sol... | 0808.0069v1 |
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