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2006-02-07 | Sublattice Asymmetric Reductions of Spin Values on Stacked Triangular Lattice Antiferromagnet CsCoBr$_3$ | We study the reductions of spin values of the ground state on a stacked
triangular antiferromagnet using the spin-wave approach. We find that the spin
reductions have sublattice asymmetry due to the cancellation of the molecular
field. The sublattice asymmetry qualitatively analyzes the NMR results of
CsCoBr$_3$. | 0602165v1 |
2010-12-27 | The multi-state CASPT2 spin-orbit method | We propose the multi-state complete-active-space second-order perturbation
theory spin-orbit method (MS-CASPT2-SO) for electronic structure calculations.
It is a two-step spin-orbit coupling method that does not make use of energy
shifts and that intrinsically guarantees the correct characters of the small
space wave f... | 1012.5572v1 |
2014-05-12 | Spin spin interaction and the relativistic Rabi formula | The interaction of an electromagnetic wave with spin (polarized light) and an
electron is computed. Specifically the spin flip probability is computed using
the Dirac equation for an electron trapped in a uniform magnetic field. | 1405.2947v2 |
2001-09-25 | Coherent control of nuclear spin isomers of molecules: The role of molecular motion | Molecular center-of-mass motion is taken into account in the theory of
coherent control of nuclear spin isomers of molecules. It is shown that
infrared radiation resonant to the molecular rovibrational transition can
substantially enrich nuclear spin isomers and speed up their conversion rate. | 0109063v1 |
2001-12-21 | Enrichment of nuclear spin isomers by molecular coherent control | Enrichment of nuclear spin isomers of molecules by infrared radiation
resonant to molecular rovibrational transition is considered. Special attention
is given to the enrichment by light-induced crossing of far separated ortho and
para states. | 0112074v1 |
2001-05-25 | A Quantum Full Adder for a Scalable Nuclear Spin Quantum Computer | We demonstrate a strategy for implementation a quantum full adder in a spin
chain quantum computer. As an example, we simulate a quantum full adder in a
chain containing 201 spins. Our simulations also demonstrate how one can
minimize errors generated by non-resonant effects. | 0105133v1 |
2009-05-04 | Self-organized quantum transitions in a spin-electron coupled system | We investigate quantum dynamics of the excited electronic states in the
double-exchange model at half-filling by solving coupled equations for the
quantum evolution of electrons and Landau-Lifshits-Gilbert equation for
classical spins. The non-adiabatic quantum transitions driving the relaxation
are coordinated through... | 0905.0311v1 |
2017-10-05 | Nuclear spin dependence of time reversal invariance violating effects in neutron scattering | The spin structure of parity violating and time reversal invariance violating
effects in neutron scattering is discussed. The explicit relations between
these effects are presented in terms of functions nuclear spins and neutron
partial widths of p-wave resonances. | 1710.02193v2 |
2008-06-20 | Penetration Depth of Transverse Spin Current in Ferromagnetic Metals | The line width of the ferromagnetic resonance (FMR) spectrum of
Cu/CoFeB/Cu/Co/Cu is studied. Analyzing the FMR spectrum by the theory of spin
pumping, we determined the penetration depth of the transverse spin current in
the Co layer. The obtained penetration depth of Co is 1.7 nm. | 0806.3315v1 |
2000-12-06 | Dispersion of the neutron resonance in cuprate superconductors | We argue that recently measured downward dispersion of the neutron resonance
peak in cuprate superconductors is naturally explained if the resonance is
viewed as a spin-1 collective mode in a d-wave superconductor. The reduction of
the resonant frequency away from the antiferromagnetic wave vector is a direct
consequen... | 0012065v2 |
2001-11-03 | Random Resonators and Prelocalized Modes in Disordered Dielectric Films | Areal density of disorder-induced resonators with a high quality factor,
$Q\gg 1$, in a film with fluctuating refraction index is calculated
theoretically. We demonstrate that for a given $kl>1$, where $k$ is the light
wave vector, and $l$ is the transport mean free path, when {\em on average} the
light propagation is ... | 0111047v1 |
2002-04-10 | Time-resolved impulse response of the magnetoplasmon resonance in a two-dimensional electron gas | We have used optically excited ultrashort electrical pulses to measure the
magnetoplasmon resonance of a two-dimensional electron gas formed in an
AlGaAs/GaAs heterostructure at frequencies up to 200 gigahertz. This is
accomplished by incorporating the sample into a guided wave probe operating in
a pumped (^{3}He) syst... | 0204229v1 |
2004-07-14 | Electric coupling to the magnetic resonance of split ring resonators | We study both theoretically and experimentally the transmission properties of
a lattice of split ring resonators (SRRs) for different electromagnetic (EM)
field polarizations and propagation directions. We find unexpectedly that the
incident electric field E couples to the magnetic resonance of the SRR when the
EM wave... | 0407369v1 |
2005-05-02 | Engineering Fano resonances in discrete networks | We study transmission properties of discrete networks composed of linear
arrays coupled to systems of N side defects, and demonstrate the basic
principles of the resonant scattering management through engineering Fano
resonances. We find exact solutions for the wave transmission coefficient and
reveal the conditions fo... | 0505023v2 |
1999-02-15 | The role of resonances in non-leptonic hyperon decays | We examine the importance of resonances for the non-leptonic hyperon decays
in the framework of chiral perturbation theory. Lower lying resonances are
included into the effective theory. Integrating out the heavy degrees of
freedom in the resonance saturation scheme generates higher order counterterms
in the effective ... | 9902351v1 |
2006-03-20 | The piN --> etaN data demand the existence of N(1710) P11 resonance reducing the 1700 MeV continuum ambiguity | In spite of prolonged polemics, the agreement on the existence of N(1710) P11
resonance has not until now been reached, and the Particle Data Group declares
it as a 3-star resonance only. We show that the proper inclusion of inelastic
channels in the coupled-channel formalism indisputably demands the existence of
N(171... | 0603144v1 |
2001-05-08 | Spatial solitons in a pumped semiconductor resonator | Bright and dark spatial solitons are observed in an optically pumped
semiconductor resonator. The pumping allows to considerably reduce the light
intensity necessary for the existence of the solitons and alleviates thermal
load problems. Experiments are found to agree with calculations based on a
simple large aperture ... | 0105019v1 |
2007-03-13 | Directional emission from weakly eccentric resonators | It is shown that when a circular resonator is deformed in a nonintegrable
way, a symmetry breaking of escaping rays occurs which can dramatically
modulate the outgoing wave even for small perturbations. The underlying
mechanism does not occur in integrable models for which the ray families can be
computed exactly and i... | 0703022v2 |
2006-10-19 | Real-time Skyrme TDHF dynamics of giant resonances | Nuclear dynamics of giant resonances are investigated with the real-time
Skyrme TDHF method. The TDHF equation is explicitly linearized with respect to
variation of single-particle wave functions. The time evolution of transition
densities are calculated for giant dipole resonances. The time-dependent
densities of prot... | 0610078v1 |
2001-06-13 | Scattering of positronium from singly ionized helium and appearing resonances | The coupled-channel model [Phys. Rev. A {\bf 59}, 363 (1999)] that yields
converged low-energy phase shifts, and exact binding and resonance features in
Ps-H [Phys. Rev. A {\bf 59}, 2058 (1999)] is applied to study Ps-He$^+$
scattering. Similar to PsH, resonances appear in the S-, P-, D-, etc partial
waves in the Ps-He... | 0106041v1 |
2002-10-11 | Hexagonal dielectric resonators and microcrystal lasers | We study long-lived resonances (lowest-loss modes) in hexagonally shaped
dielectric resonators in order to gain insight into the physics of a class of
microcrystal lasers. Numerical results on resonance positions and lifetimes,
near-field intensity patterns, far-field emission patterns, and effects of
rounding of corne... | 0210052v2 |
2006-12-27 | Calculation of three-body resonances using slow-variable discretization coupled with complex absorbing potential | We developed a method to calculate positions and widths of three-body
resonances. The method combines the hyperspherical adiabatic approach, slow
variable discretization method (Tolstikhin et al., J. Phys. B: At. Mol. Opt.
Phys. 29, L389 (1996)), and a complex absorbing potential. The method can be
used to obtain reson... | 0612242v3 |
2002-10-02 | The role of the buildup oscillations on the speed of resonant tunneling diodes | The fastest tunneling response in double barrier resonant structures is
investigated by considering explicit analytic solutions of the time dependent
Schr\"{o}dinger equation. For cutoff initial plane waves, we find that the
earliest tunneling events consist on the emission of a series of propagating
pulses of the prob... | 0210012v1 |
2007-06-11 | Resonances of the Quantum $δ$-Kicked Accelerator | We report the observation of high order resonances of the quantum
$\delta$-kicked accelerator using a BEC kicked by a standing wave of light. The
signature of these resonances is the existence of quantum accelerator modes.
For the first time quantum accelerator modes were seen near 1/4 and 1/3 of the
Talbot time. Using... | 0706.1587v1 |
2008-04-01 | Optical combs with a crystalline whispering gallery mode resonator | We report on the experimental demonstration of a tunable monolithic optical
frequency comb generator. The device is based on the four-wave mixing in a
crystalline calcium fluoride whispering gallery mode resonator. The frequency
spacing of the comb is given by an integer number of the free spectral range of
the resonat... | 0804.0263v1 |
2009-07-15 | Acoustic characterization of Hofstadter butterfly with resonant scatterers | We are interested in the experimental characterization of the Hofstadter
butterfly by means of acoustical waves. The transmission of an acoustic pulse
through an array of 60 variable and resonant scatterers periodically distribued
along a waveguide is studied. An arbitrary scattering arrangement is realized
by using th... | 0907.2517v1 |
2009-08-31 | Anomalous diffusion in the resonant quantum kicked rotor | We study the resonances of the quantum kicked rotor subjected to an
excitation that follows a deterministic time-dependent prescription. For the
primary resonances we find an analytical relation between the long-time
behavior of the standard deviation and the external kick strength. For the
secondary resonances we obta... | 0908.4596v2 |
2010-01-19 | Isospin breaking effects in the dynamical generation of the X(3872) | We have studied isospin breaking effects in the X(3872) resonance and found a
natural explanation for the branching fraction of the X decaying to $J/\psi$
with two and three pions being close to unit. Within our framework the X(3872)
is a dynamically generated resonance in coupled channels. We also study the
relationsh... | 1001.3254v1 |
2010-05-20 | Dynamical electric dipole theory for quantitatively describing coupled split-ring resonators | Metallic split-ring resonators possess dominant electric dipoles as well as
considerable magnetic dipoles under proper excitations. Full-wave numerical
approaches are frequently employed to simulate adjacent split-ring resonators,
but simulations cannot explain the underlying physics. An analytical theory
based on a dy... | 1005.3819v1 |
2010-06-19 | Enhancement and Inhibition of Transmission from metal gratings: Engineering the Spectral Response | We present a systematic analysis of the optical properties of slit arrays in
metal films. An exhaustive investigation of geometrical and dispersive
properties reveals the resonance features of these structures, including the
role of surface waves and their relationship with features in the transmission
spectrum. Althou... | 1006.3841v1 |
2010-08-23 | Statistics of resonance states in a weakly open chaotic cavity | In this letter, we demonstrate that a non-Hermitian Random Matrix description
can account for both spectral and spatial statistics of resonance states in a
weakly open chaotic wave system with continuously distributed losses. More
specifically, the statistics of resonance states in an open 2D chaotic
microwave cavity a... | 1008.3878v1 |
2011-08-12 | Electrodynamics of the Josephson-Coupled Parallel Plate Resonator | Eigen oscillations in a superconducting parallel plate resonator with the
Josephson-coupled plates are investigated. While the insulator thickness S
changes from tens of microns down to the decay lengthscale of the
superconducting wavefunction into a dielectric, \xi~1 nm, both the resonant
frequency and Q-factor vary n... | 1108.2697v1 |
2011-12-15 | Electromagnetic cavity tests of Lorentz invariance on Earth and in space | We present a Michelson-Morley type experiment for testing the isotropy of the
speed of light in vacuum and matter. The experiment compares the resonance
frequency of an actively rotated monolithic optical cryogenic sapphire
resonator against the resonance frequency of a stationary evacuated optical
cavity made of ultra... | 1112.3857v1 |
2013-06-04 | Laser-Machined Ultra-High-Q Microrod Resonators for Nonlinear Optics | Optical whispering-gallery microresonators are useful tools in
microphotonics, and nonlinear optics at very low threshold powers. Here, we
present details about the fabrication of ultra-high-Q whispering-gallery-mode
resonators made by CO2-laser lathe machining of fused-quartz rods. The
resonators can be fabricated in ... | 1306.0939v1 |
2015-02-18 | Symmetry-assisted resonance transmission of identical particles | We report novel interference effects in wave packet scattering of identical
particles incident on the same side of a resonant barrier, different from those
observed in Hong-Ou-Mandel experiments. These include significant changes in
the mean number of transmissions and full counting statistics, as well as
"bunching" an... | 1502.05325v3 |
2015-07-29 | Resonances in two-electron atoms below the critical charge | The critical nuclear charge Zc required for a heliumlike atom to have at
least one bound state was recently determined with high accuracy from
variational calculations. Analysis of the wave functions further suggested that
the bound state changes smoothly into a shape resonance as Z crosses the
critical value. Using va... | 1507.08033v1 |
2015-08-25 | Droplets Acoustics | Contrary to their capillary resonances (Rayleigh, 1879) and their optical
resonances (Ashkin, 1977), droplets acoustical resonances were rarely
considered. Here we experimentally excite, for the first time, the acoustical
resonances of a droplet that relies on sound instead of capillary waves.
Droplets vibrations at 37... | 1508.06628v2 |
2015-09-18 | Fano resonances and band structure of two dimensional photonic structures | We show that the frequency spectrum of two dimensional photonic crystals is
strongly influenced by Fano resonances which can be excited already in the
linear array of dielectric cylinders. To support this claim, we calculate the
transmission of electromagnetic wave through linear array of dielectric
cylinders and show ... | 1509.05513v1 |
2017-07-19 | Internal polarization dynamics of vector dissipative-soliton-resonance pulses in normal dispersion fiber lasers | Investigation of internal polarization dynamics of vector
dissipative-soliton-resonance (DSR) pulses in a mode-locked fiber laser is
presented. Stable vector DSR pulses are experimentally ob- served. Using a
waveplate-analyzer configuration, we find that polarization is not uniform
across a resonant dissipative soliton... | 1707.05939v1 |
2018-06-28 | Electromagnetic Scattering Resonances of Quasi-1D Nanoribbons | We analyse the resonance conditions of a long and narrow ribbon of finite
length whether it is conductive or dielectric. This is accomplished by using a
full wave approach based on the material independent modes that naturally
discriminates the role of the geometry and of the material. This method
effectively allows th... | 1806.11088v3 |
2019-11-29 | The enigmatic $Δ(1600)$ resonance | Our recently proposed model of the $\Delta(1600)$ resonance, in which the
dominant component is a quasi-bound state of the $\Delta(1232)$ and the pion,
is confronted with a similar model of the $N^*(1440)$ resonance as its
counterpart in the P11 partial wave. We stress an essentially different
mechanism responsible for... | 1911.13026v1 |
2018-02-27 | Resonant states in double and triple quantum wells | The full set of resonant states in double and triple quantum well/barrier
structures is investigated. This includes bound, anti-bound and normal resonant
states which are all eigensolutions of Schrodinger's equation with generalized
outgoing wave boundary conditions. The transformation of resonant states and
their tran... | 1802.09855v2 |
2018-08-02 | Enhanced Attenuation Arising from Lattice Resonances in a Plasma Photonic Crystal | We describe the experimental verification of lattice resonances in
two-dimensional photonic crystals constructed from an array of gaseous plasma
columns. Enhancements are seen in the extinction of normal incidence transverse
electric electromagnetic waves when the localized surface plasmon modes of the
plasma columns a... | 1808.00610v1 |
2019-02-28 | Reflected wavefront manipulation by acoustic metasurface with anisotropic local resonant units | In this work, we develop the gradient metasurface is constructed of a locally
anisotropic resonant structure, comprising a steel cylinder with an elliptical
rubber coating embedded in epoxy. The deflective angles of rubber ellipses in
the locally anisotropic resonant unit provide a method of controlling the
reflected p... | 1902.10862v1 |
2020-04-20 | Supersymmetric quantum mechanics to study the 16.8 MeV resonance state of $^{9}$B | The study of a high-lying resonant state of $^{9}$B is carried out using
supersymmetric quantum mechanics (SQM). The resulting isospectral potentials
are very deep and narrow and the generated wave functions identify the
resonance at 16.84 MeV with a width of 69 keV. The present work shows that SQM
can be successfully ... | 2004.09105v1 |
2017-06-06 | Resonant Transmission in One-Dimensional Quantum Mechanics with Two Independent Point Interactions: Full Parameter Analysis | We discuss the scattering of a quantum particle by two independent successive
point interactions in one dimension. The parameter space for two point
interactions is given by $U(2)\times U(2)$, which is described by eight real
parameters. We perform an analysis of perfect resonant transmission on the
whole parameter spa... | 1706.01595v2 |
2020-11-29 | Resonances of the Laplace operator on homogeneous vector bundles on symmetric spaces of real rank-one | We study the resonances of the Laplacian acting on the compactly supported
sections of a homogeneous vector bundle over a Riemannian symmetric space of
the non-compact type. The symmetric space is assumed to have rank-one but the
irreducible representation $\tau$ of $K$ defining the vector bundle is
arbitrary. We deter... | 2011.14355v1 |
2023-11-22 | From local to nonlocal high-Q plasmonic metasurfaces | The physics of bound states in the continuum (BICs) allows to design and
demonstrate optical resonant structures with large values of the quality factor
($Q$-factor) by employing dielectric structures with low losses. However, BIC
is a general wave phenomenon that should be observed in many systems, including
the metal... | 2311.13452v1 |
2024-02-06 | Terahertz plasmonic resonances in coplanar graphene nanoribbon structures | We analyze plasmonic oscillations in the coplanar graphene nanoribbon (GNR)
structures induced by the applied terahertz (THz) signals and calculate the GNR
impedance. The plasmonic oscillations in the CNR structures are associated with
the electron and hole inductances and the lateral inter-CNR capacitance. A
relativel... | 2402.03912v2 |
1999-11-18 | Time-resolved optical observation of spin-wave dynamics | We have created a nonequilibrium population of antiferromagnetic spin-waves
in Cr2O3, and characterized its dynamics, using frequency- and time-resolved
nonlinear optical spectroscopy of the exciton-magnon transition. We observe a
time-dependent pump-probe line shape, which results from excitation induced
renormalizati... | 9911294v1 |
2004-07-16 | Interaction and dynamical binding of spin waves or excitons in quantum Hall systems | Interaction between spin waves (or excitons) moving in the lowest Landau
level is studied using numerical diagonalization. Becuse of complicated
statistics obeyed by these composite particles, their effective interaction is
completely different from the dipole-dipole interaction predicted in the model
of independent (b... | 0407449v1 |
2006-06-05 | Can the Landau-Lifshitz equation explain the spin-wave instability in ferromagnetic thin films for parallel pumping? | Spin-wave instability is studied analytically in the case of parallel pumping
for thin films under external field perpendicular to the film plane. It is
examined whether the instability threshold derived from only the
Landau-Lifshitz (LL) equation can explain experimental instability threshold
without using the microsc... | 0606106v1 |
2008-02-14 | Coriolis Effect in Optics: Unified Geometric Phase and Spin-Hall Effect | We examine the spin-orbit coupling effects that appear when a wave carrying
intrinsic angular momentum interacts with a medium. The Berry phase is shown to
be a manifestation of the Coriolis effect in a non-inertial reference frame
attached to the wave. In the most general case, when both the direction of
propagation a... | 0802.2114v2 |
2008-04-03 | On the coupling between spinning particles and cosmological gravitational waves | The influence of spin in a system of classical particles on the propagation
of gravitational waves is analyzed in the cosmological context of primordial
thermal equilibrium. On a flat Friedmann-Robertson-Walker metric, when the
precession is neglected, there is no contribution due to the spin to the
distribution functi... | 0804.0572v1 |
2008-12-09 | Quantized spin waves in the metallic state of magnetoresistive manganites | High resolution spin waves measurements have been carried out in
ferromagnetic (F) La(1-x)(Sr,Ca)xMnO3 with x(Sr)=0.15, 0.175, 0.2, 0.3 and
x(Ca)=0.3. In all q-directions, close to the zone boundary, the spin wave
spectra consist of several energy levels, with the same values in the metallic
and the x\approx 1/8 ranges... | 0812.1715v2 |
2009-02-13 | A spin-wave frequency doubler by domain wall oscillation | We present a new mechanism for spin-wave excitation using a pinned domain
wall which is forced to oscillate at its eigenfrequency and radiates spin
waves. The domain wall acts as a frequency doubler, as the excited spin waves
have twice the frequency of the domain wall oscillation. The investigations
have been carried ... | 0902.2321v1 |
2009-12-10 | Magnonic crystal based forced dominant wavenumber selection in a spin-wave active ring | Spontaneous excitation of the dominant mode in a spin-wave active ring -- a
self-exciting positive-feedback system incorporating a spin-wave transmission
structure -- occurs at a certain threshold value of external gain. In general,
the wavenumber of the dominant mode is extremely sensitive to the properties
and enviro... | 0912.2029v3 |
2011-09-09 | Mode conversion by symmetry breaking of propagating spin waves | We study spin-wave transport in a microstructured Ni81Fe19 waveguide
exhibiting broken translational symmetry. We observe the conversion of a beam
profile composed of symmetric spin-wave width modes with odd numbers of
antinodes n=1,3,... into a mixed set of symmetric and asymmetric modes. Due to
the spatial homogeneit... | 1109.1958v2 |
2012-08-25 | Spin dynamics of possible density wave states in the pseudogap phase of the high temperature superconductors | In a recent inelastic neutron scattering experiment in the pseudogap state of
the high temperature superconductor $\mathrm{YBa_{2}Cu_{3}O_{6.6}}$ an unusual
`vertical' dispersion of the spin excitations with a large in-plane anisotropy
was observed. In this paper we discuss in detail the spin susceptibility of the
sing... | 1208.5108v1 |
2013-03-07 | Chiral spin-wave edge modes in dipolar magnetic thin films | Based on a linearized Landau-Lifshitz equation, we show that two-dimensional
periodic allay of ferromagnetic particles coupled with magnetic dipole-dipole
interactions supports chiral spin-wave edge modes, when subjected under the
magnetic field applied perpendicular to the plane. The mode propagates along a
one-dimens... | 1303.1630v3 |
2013-04-08 | Electronic phase separation in iron pnictides | A mechanism for electronic phase separation in iron pnictides is proposed. It
is based on the competition between commensurate and incommensurate
spin-density-wave phases in a system with an imperfect doping-dependent nesting
of a multi-sheeted Fermi surface. We model the Fermi surface by two elliptical
electron pocket... | 1304.2175v2 |
2013-10-12 | Role of Anion Ordering in the Coexistence of Spin-Density-Wave and Superconductivity in (TMTSF)2ClO4 | Using various transport and magnetotransport probes we study the coexistence
of spin-density wave and superconductor states in (TMTSF)2ClO4 at various
degrees of ClO4 anions ordering. In the two-phase complex state when both
superconductivity and spin-density wave are observed in transport, we find
prehistory effects, ... | 1310.3434v1 |
2013-11-25 | Spin-wave excitation and propagation in microstructured waveguides of yttrium iron garnet (YIG)/Pt bilayers | We present an experimental study of spin-wave excitation and propagation in
microstructured waveguides patterned from a 100 nm thick yttrium iron garnet
(YIG)/platinum (Pt) bilayer. The life time of the spin waves is found to be
more than an order of magnitude higher than in comparably sized metallic
structures despite... | 1311.6305v1 |
2014-03-27 | Driving spin and charge in quantum wells by surface acoustic waves | Recent experiments have shown the potential of surface acoustic waves as a
mean for transporting charge and spin in quantum wells. In particular, they
have proven highly effective for the coherent transport of spin-polarized wave
packets, suggesting their potential in spintronics applications. Motivated by
these experi... | 1403.6960v2 |
2014-04-14 | Cavity-enhanced storage in an optical spin-wave memory | We report on the experimental demonstration of an optical spin-wave memory,
based on the atomic frequency comb (AFC) scheme, where the storage efficiency
is strongly enhanced by an optical cavity. The cavity is of low finesse, but
operated in an impedance matching regime to achieve high absorption in our
intrinsically ... | 1404.3489v1 |
2014-04-22 | Spin-wave-induced correction to the conductivity of ferromagnets | We calculate the correction to the conductivity of a disordered ferromagnetic
metal due to spin-wave-mediated electron--electron interactions. This
correction is the generalization of the Altshuler-Aronov correction to
spin-wave-mediated interactions. We derive a general expression for the
conductivity correction to lo... | 1404.5437v1 |
2014-10-02 | Spin wave non-reciprocity and beating in permalloy by time-resolved magneto-optical Kerr effect | We have studied the propagation characteristics of spin wave modes in a
permalloy stripe by time-resolved magneto-optical Kerr effect techniques. We
observe a beating interference pattern in the time domain under the influence
of an electrical square pulse excitation at the center of the stripe. We also
probe the non-r... | 1410.0441v1 |
2014-11-04 | A micro-sized parametric spin-wave amplifier | We present the experimental observation of the localized amplification of
externally excited spin waves in a transversely in-plane magnetized
Ni$_{81}$Fe$_{19}$ magnonic waveguide by means of parallel pumping. By
employing microfocussed Brillouin light scattering spectroscopy, we analyze the
dependency of the amplifica... | 1411.0830v1 |
2015-02-22 | Excitation and detection of propagating spin waves at the single magnon level | Ferro- and ferrimagnets play host to small-signal, microwave-frequency
magnetic excitations called spin waves, the quanta of which are known as
magnons. Over the last decade, the field of spin-wave dynamics has contributed
much to our understanding of fundamental magnetism. To date, experiments have
focussed overwhelmi... | 1502.06263v1 |
2015-04-10 | Influence of magnetic surface anisotropy on spin wave reflection from the edge of ferromagnetic film | We study propagation of the Gaussian beam of spin waves and its reflection
from the edge of thin yttrium-iron-garnet film with in-plane magnetization
perpendicular to this edge. We have performed micromagnetic simulations
supported by analytical calculations to investigate influence of the surface
magnetic anisotropy p... | 1504.02668v2 |
2015-09-17 | Antiferromagnetic Spin Wave Field-Effect Transistor | In a collinear antiferromagnet with easy-axis anisotropy, symmetry dictates
that the spin wave modes must be doubly degenerate. Theses two modes,
distinguished by their opposite polarization and available only in
antiferromagnets, give rise to a novel degree of freedom to encode and process
information. We show that th... | 1509.05295v3 |
2015-10-08 | Orbital order, spin waves, and doping effects in the $(π,0)$ SDW state --- comparative study of the three band models for iron pnictides | Aimed at identifying the role of microscopic Hamiltonian parameters on spin
wave excitations, orbital order, and magnetic moments in the $(\pi,0)$ SDW
state, two different three band models for iron pnictides are compared --- one
at two-third filling ($n=4$) and another at half filling $(n=3)$ --- both of
which yield q... | 1510.02276v1 |
2015-12-09 | Entanglement between Lowly and Highly Lying Atomic Spin Waves | Establishing a quantum interface between different physical systems is of
special importance for developing the practical versatile quantum networks.
Entanglement between low- and high-lying atomic spin waves is essential for
building up Rydberg-based quantum information engineering, otherwhile be more
helpful to study... | 1512.02772v3 |
2016-01-11 | Nonlinear effects in the propagation of optically generated magnetostatic volume mode spin waves | Recent experimental work has demonstrated optical control of spin wave
emission by tuning the shape of the optical pulse (Satoh et al.\ Nature
Photonics, 6, 662 (2012)). We reproduce these results and extend the scope of
the control by investigating nonlinear effects for large amplitude excitations.
We observe an accum... | 1601.02511v5 |
2016-01-27 | Quantification of a propagating spin-wave-packet created by an ultrashort laser pulse in a thin film of magnetic metal | Coherent spin-wave generation by focused ultrashort laser pulse irradiation
was investigated for a permalloy thin film at micrometer scale using an
all-optical space and time-resolved magneto-optical Kerr effect. The spin-wave
packet propagating perpendicular to magnetization direction was clearly
observed, however tha... | 1601.07247v1 |
2016-04-25 | Excitation of spin wave modes of a magnetic dot existing in a shifted vortex-state by an out-of-plane oscillating magnetic field | Excitation of spin wave modes of a vortex-state magnetic dot by an
out-of-plane oscillating magnetic field is studied numerically in the presence
of a static in-plane magnetic field. It is shown, that the application of the
in-plane static field shifts the position of the vortex core and leads to the
separate excitatio... | 1604.07161v1 |
2016-07-26 | Transverse azimuthal dephasing of vortex spin wave in a hot atomic gas | Optical fields with orbital angular momentum (OAM) interact with medium have
many remarkable properties with its unique azimuthal phase, showing many
potential applications in high capacity information processing, high precision
measurement etc. The dephasing mechanics of optical fields with OAM in an
interface between... | 1607.07689v1 |
2016-09-27 | Spin-wave dynamics in FeGe helimagnet: studied by small-angle neutron scattering | We have studied the spin-wave stiffness of the Dzyaloshinskii-Moriya
helimagnet FeGe in a temperature range from 225~K up to $T_C \approx$~278.7~K
by small-angle neutron scattering. The method we have used is based on [S. V.
Grigoriev et al. Phys. Rev. B \textbf{92} 220415(R) (2015)] and was extended
here for the appli... | 1609.08358v1 |
2018-01-19 | Nonabelian magnonics in antiferromagnets | We present a semiclassical formalism for antiferromagnetic (AFM) magnonics
which promotes the central ingredient of spin wave chirality, encoded in a
quantity called magnonic isospin, to a first-class citizen of the theory. We
use this formalism to unify results of interest from the field under a single
chirality-centr... | 1801.06535v3 |
2018-01-25 | Electrical generation and detection of spin waves in a quantum Hall ferromagnet | Spin waves are collective excitations of magnetic systems. An attractive
setting for studying long-lived spin-wave physics is the quantum Hall (QH)
ferromagnet, which forms spontaneously in clean two-dimensional electron
systems at low temperature and in a perpendicular magnetic field. We used
out-of-equilibrium occupa... | 1801.08534v2 |
2018-11-01 | Population Synthesis of Accreting Neutron Stars Emitting Gravitational Waves | The fastest-spinning neutron stars in low-mass X-ray binaries, despite having
undergone millions of years of accretion, have been observed to spin well below
the Keplerian break-up frequency. We simulate the spin evolution of synthetic
populations of accreting neutron stars in order to assess whether gravitational
wave... | 1811.00550v2 |
2018-11-12 | Ultra-narrow spin wave metasurface for focusing application | In this paper we show that the phase shift of the spin waves can be
controlled in transmission through metasurface represented as an ultra-narrow
non-magnetic spacer separating two ferromagnetic films. We design this
metasurface to present the focusing of spin waves in an Co thin film. For this
purpose we exploit the s... | 1811.04613v2 |
2019-11-25 | Snell's law for spin waves at a 90-degree domain wall | We report experimental observation of the refraction and re ection of
propagating magnetostatic spin waves crossing a 90-degree domain wall (DW) in
terms of time-resolved magneto-optical imaging. Due to the magnetization
rotation across the 90-degree DW, the dispersion relation of magnetostatic spin
waves rotates by 90... | 1911.10659v1 |
2017-05-08 | Deviation and precession effects in the field of a weak gravitational wave | Deviation and precession effects of a bunch of spinning particles in the
field of a weak gravitational plane wave are studied according to the
Mathisson-Papapetrou-Dixon (MPD) model. Before the passage of the wave the
particles are at rest with associated spin vector aligned along a given
direction with constant magnit... | 1705.02794v1 |
2017-05-25 | Spin-wave spectroscopy on Dzyaloshinskii-Moriya interaction in room-temperature chiral magnets hosting skyrmions | Propagation character of spin wave was investigated for chiral magnets FeGe
and Co-Zn-Mn alloys, which can host magnetic skyrmions near room temperature.
On the basis of the frequency shift between counter-propagating spin waves, the
magnitude and sign of Dzyaloshinskii-Moriya (DM) interaction were directly
evaluated. ... | 1705.09001v1 |
2018-07-27 | Optimization of Multi-Frequency Magnonic Waveguides with Enhanced Group Velocities by Exchange Coupled Ferrimagnet/Ferromagnet Bilayers | We report broadband spectroscopy and numerical analysis by which we explore
propagating spin waves in a magnetic bilayer consisting of a 23 nm thick
permalloy film deposited on 130 nm thick $Y_{3}Fe_{5}O_{12}$. In the bilayer,
we observe a characteristic mode that exhibits a considerably larger group
velocity at small ... | 1807.10508v2 |
2018-02-12 | Dynamics of a magnetic skyrmionium driven by spin waves | The magnetic skyrmionium is a skyrmion-like structure but carries a zero net
skyrmion number, which can be used as a building block for non-volatile
information processing devices. Here, we study the dynamics of a magnetic
skyrmionium driven by propagating spin waves. It is found that the skyrmionium
can be effectively... | 1802.03868v2 |
2016-12-07 | Non-volatile spin wave majority gate at the nanoscale | A spin wave majority fork-like structure with feature size of 40\,nm, is
presented and investigated, through micromagnetic simulations. The structure
consists of three merging out-of-plane magnetization spin wave buses and four
magneto-electric cells serving as three inputs and an output. The information
of the logic s... | 1612.02170v1 |
2017-06-10 | Spin wave nonreciprocity and magnonic band structure in thin permalloy film induced by dynamical coupling with an array of Ni stripes | An efficient way for the control of spin wave propagation in a magnetic
medium is the use of periodic patterns known as magnonic crystals (MCs).
However, the fabrication of MCs especially bi-components, with periodicity on
nanoscale, is a challenging task due to the requirement for sharp interfaces.
An alternative meth... | 1706.03202v1 |
2020-09-07 | Field-theory spin and momentum in water waves | Spin is a fundamental yet nontrivial intrinsic angular-momentum property of
quantum particles or fields, which appears within relativistic field theory.
The spin density in wave fields is described by the theoretical
Belinfante-Rosenfeld construction based on the difference between the canonical
and kinetic momentum de... | 2009.03245v4 |
2020-11-02 | Simulating Spin Waves in Entropy Stabilized Oxides | The entropy stabilized oxide
Mg$_{0.2}$Co$_{0.2}$Ni$_{0.2}$Cu$_{0.2}$Zn$_{0.2}$O exhibits antiferromagnetic
order and magnetic excitations, as revealed by recent neutron scattering
experiments. This observation raises the question of the nature of spin wave
excitations in such disordered systems. Here, we investigate t... | 2011.01288v1 |
2021-04-23 | Spin-wave frequency combs | We experimentally demonstrate the generation of spin-wave frequency combs
based on the nonlinear interaction of propagating spin waves in a
microstructured waveguide. By means of time and space-resolved Brillouin light
scattering spectroscopy, we show that the simultaneous excitation of spin waves
with different freque... | 2104.11491v2 |
2021-10-21 | Generation of perfect-cavity-enhanced atom-photon entanglement with a millisecond lifetime via a spatially-multiplexed cavity | A qubit memory is the building block for quantum information. Cavity-enhanced
spin-wave-photon entanglement has been achieved by applying dual-control modes.
However, owing to cross readouts between the modes, the qubit retrieval
efficiency is about one quarter lower than that for a single spin-wave mode at
all storage... | 2110.10971v1 |
2019-01-30 | Propagation of Spin Waves Through an Interface Between Ferromagnetic and Antiferromagnetic Materials | Boundary conditions for order parameters at an interface between
ferromagnetic (FM) and two-sublattice antiferromagnetic (AFM) materials were
obtained in the continuous medium approximation similarly to the approach which
allows one to take into account the finite thickness of the FM/FM interface,
which is much less th... | 1901.10988v1 |
2019-04-01 | Inelastic spin-wave scattering by Bloch domain wall flexure oscillations | The calculations of the inelastic spin wave scattering by flexure vibrations
of the Bloch domain wall (Winters magnons) in thin magnetic films are
presented. The approach is based on the interaction of the propagating spin
waves with the dynamical emergent electromagnetic field generated by the moving
inhomogeneous mag... | 1904.00596v1 |
2019-04-25 | Spin-wave propagation in metallic CoFe films determined by microfocused frequency-resolved magneto-optic Kerr effect | We investigated the magnetization dynamics of a patterned
Co$_{25}$Fe$_{75}$-based heterostructure with a novel optical measurement
technique that we call microfocused frequency-resolved magneto optic Kerr
effect ($\mu$FR-MOKE). We measured the magnetic field dependence of the
dynamical spin-wave susceptibility and rec... | 1904.11273v1 |
2019-07-10 | Spin-Wave Multiplexed Atom-Cavity Electrodynamics | We introduce multiplexed atom-cavity quantum electrodynamics with an atomic
ensemble coupled to a single optical cavity mode. Multiple Raman dressing beams
establish cavity-coupled spin-wave excitations with distinctive spatial
profiles. Experimentally, we demonstrate the concept by observing spin-wave
vacuum Rabi spli... | 1907.04921v2 |
2019-08-09 | Sustained coherent spin wave emission using frequency combs | We demonstrate sustained coherent emission of spin waves in NiFe films using
rapid demagnetization from high repetition rate femtosecond laser pulse trains.
As the pulse separation is shorter than the magnon decay time, magnons having a
frequency equal to a multiple of the 1 GHz repetition-rate are coherently
amplified... | 1908.03388v2 |
2019-10-16 | Spin-Wave frequency division multiplexing in an yttrium iron garnet microstripe magnetized by inhomogeneous field | Spin waves are promising candidates for information processing and
transmission in a broad frequency range. In the realization of magnonic
devices, the frequency depended division of the spin wave frequencies is a
critical function for parallel information processing. In this work, we
demonstrate a proof-of-concept spi... | 1910.07136v1 |
2020-05-21 | Effect of Dzyaloshinskii-Moriya interaction on magnetic vortex switching driven by radial spin waves | We theoretically investigate the radial-spin-wave induced magnetic vortex
switching in the presence of Dzyaloshinskii-Moriya interaction (DMI). From
micromagnetic simulations, we observe a circular-to-radial vortex phase
transition by increasing the DMI strength. The radial spin-wave excitation
spectrum for each magnet... | 2005.10440v1 |
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