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2023-07-14 | Observation and control of hybrid spin-wave-Meissner-current transport modes | Superconductors are materials with zero electrical resistivity and the
ability to expel magnetic fields known as the Meissner effect. Their
dissipationless diamagnetic response is central to magnetic levitation and
circuits such as quantum interference devices. Here, we use superconducting
diamagnetism to shape the mag... | 2307.07581v1 |
2023-10-10 | Spin attributes of structured vector fields constructed by Hertz potentials | In this paper, we use the Hertz vector potential to define the
electromagnetic vector of different structured wavefields, and analyze the spin
properties of the wavefields. We show that for the single evanescent waves, the
total spin provides by the transverse spin and originates from the spatial
inhomogeneity of the m... | 2310.06664v1 |
2021-06-08 | Superconducting microresonators for electron spin resonance, the good, the bad, and the future | The field of electron spin resonance is in constant need to improve its
capabilities. Among other things, this means having better resonators which
would provide improved spin sensitivity, as well as enable larger microwave
magnetic field power conversion factors. Surface micro resonators, made of
small metallic patche... | 2106.04163v2 |
2019-01-31 | Triplet superconductivity in ferromagnets due to magnon exchange | We consider the superconducting pairing induced by spin waves exchange in a
ferromagnet with both conduction and localized electrons, the latter being
described as spins. We use the microscopic Eliashberg theory to describe the
pairing of conducting electrons and the RPA approach to treat the localized
spins assuming a... | 1901.11248v1 |
2006-11-09 | Spin susceptibility in bilayered cuprates: resonant magnetic excitations | We study the momentum and frequency dependence of the dynamical spin
susceptibility in the superconducting state of bilayer cuprate superconductors.
We show that there exists a resonance mode in the odd as well as the even
channel of the spin susceptibility, with the even mode being located at higher
energies than the ... | 0611267v1 |
2008-09-26 | Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC | We perform a model-independent study for top-antitop and top-top resonances
in the dilepton channel at the Large Hadtron Collider. In this channel, we can
solve the kinematic system to obtain the momenta of all particles including the
two neutrinos, and hence the resonance mass and spin. For discovering
top-antitop res... | 0809.4487v2 |
2001-12-16 | The Wave Theory of the Field | As a substitute for the current hypothesis of space-time continuity, we show
the nature and the characteristics of a Schild's discrete space-time. With the
wave perturbations of its metrical structure we formulate the working
hypothesis that all subatomic particles are elementary sources of spherical
waves constituting... | 0112089v1 |
2013-01-24 | Spin transport parameters in metallic multilayers determined by ferromagnetic resonance measurements of spin pumping | We measured spin transport in nonferromagnetic (NM) metallic multilayers from
the contribution to damping due to spin pumping from a ferromagnetic Co90Fe10
thin film. The multilayer stack consisted of NM1/NM2/Co90Fe10(2 nm)/NM2/NM3
with varying NM materials and thicknesses. Using conventional theory for one
dimensional... | 1301.5861v1 |
2013-11-05 | Spin accumulation detection of FMR driven spin pumping in silicon-based metal-oxide-semiconductor heterostructures | The use of the spin Hall effect and its inverse to electrically detect and
manipulate dynamic spin currents generated via ferromagnetic resonance (FMR)
driven spin pumping has enabled the investigation of these dynamically injected
currents across a wide variety of ferromagnetic materials. However, while this
approach ... | 1311.0965v1 |
2014-11-14 | Broadband resonances in ITO nanorod arrays | In the nanophotonics community, there is an active discussion regarding the
origin of the selective absorption/scattering of light by the resonances with
nanorod arrays. Here we report a study of the resonances in ordered
indium-tin-oxide (ITO) nanorod arrays resulted from the waveguide modes. We
discover that with onl... | 1411.3767v2 |
2022-05-11 | Mathematical theory for electromagnetic scattering resonances and field enhancement in a subwavelength annular gap | This work presents a mathematical theory for electromagnetic scattering
resonances in a subwavelength annular hole embedded in a metallic slab, with
the annulus width $h\ll1$. The model is representative among many 3D
subwavelength hole structures, which are able to induce resonant scattering of
electromagnetic wave an... | 2205.05377v1 |
2017-02-20 | Environmentally mediated coherent control of a spin qubit in diamond | The coherent control of spin qubits forms the basis of many applications in
quantum information processing and nanoscale sensing, imaging and spectroscopy.
Such control is conventionally achieved by direct driving of the qubit
transition with a resonant global field, typically at microwave frequencies.
Here we introduc... | 1702.05822v1 |
2018-11-14 | Spin detection with a micromechanical trampoline: Towards magnetic resonance microscopy harnessing cavity optomechanics | We explore the prospects and benefits of combining the techniques of cavity
optomechanics with efforts to image spins using magnetic resonance force
microscopy (MRFM). In particular, we focus on a common mechanical resonator
used in cavity optomechanics -- high-stress stoichiometric silicon nitride
(Si$_3$N$_4$) membra... | 1811.05718v2 |
2020-03-26 | Magnetoelastic waves in thin films | This paper discusses the physics of magnetoelasticity and magnetoelastic
waves as well as their mathematical description. Magnetoelastic waves occur as
a result of strong coupling between spin waves and elastic waves in
magnetostrictive ferromagnetic media. In a first part, the basic behavior of
spin waves is reviewed ... | 2003.12099v1 |
2015-03-13 | Spin-wave logic devices based on isotropic forward volume magneto-static waves | We propose the utilization of isotropic forward volume magneto-static spin
waves in modern wave-based logic devices and suggest a concrete design for a
spin-wave majority gate operating with these waves. We demonstrate by numerical
simulations that the proposed out-of-plane magnetized majority gate overcomes
the limita... | 1503.04101v1 |
2022-01-11 | Parametric Excitation and Instabilities of Spin Waves driven by Surface Acoustic Waves | The parametric excitation of spin waves by coherent surface acoustic waves is
demonstrated experimentally in metallic magnetic thin film structures. The
involved magnon modes are analyzed with micro-focused Brillouin light
scattering spectroscopy and complementary micromagnetic simulations combined
with analytical mode... | 2201.04033v2 |
2011-08-05 | Magnons and electromagnons in a spin-lattice-coupled frustrated magnet CuFeO2 as seen via inelastic neutron scattering | We have investigated spin-wave excitations in a four-sublattice (4SL)
magnetic ground state of a frustrated magnet CuFeO2, in which `electromagnon'
(electric-field-active magnon) excitation has been discovered by recent
terahertz time-domain spectroscopy [Seki et al. Phys. Rev. Lett. 105 097207
(2010)]. In previous stu... | 1108.1297v1 |
2013-07-22 | Topological quantum phase transition in Kane-Mele-Kondo lattice model | We systematically explore the ground-state phase diagram of the
Kane-Mele-Kondo lattice model on the honeycomb lattice, in particular, we focus
on its magnetic properties which has not been studied in the previous
publication[Feng, Dai, Chung, and Si, Phys. Rev. Lett. \textbf{111}, 016402
(2013)]. Beside the Kondo insu... | 1307.5627v2 |
2003-10-16 | Spin Torque and its Relation to Spin Filtering | The spin torque exerted on a magnetic moment is a reaction to spin filtering
when spin-polarized electrons interact with a thin ferromagnetic film. We show
that, for certain conditions, a spin transmission resonance (STR) gives rise to
a failure of spin filtering. As a consequence, no spin is transfered to the
ferromag... | 0310392v1 |
2011-05-24 | Scalable Spin Amplification with a Gain over a Hundred | We propose a scalable and practical implementation of spin amplification
which does not require individual addressing nor a specially tailored spin
network. We have demonstrated a gain of 140 in a solid-state nuclear spin
system of which the spin polarization has been increased to 0.12 using dynamic
nuclear polarizatio... | 1105.4740v1 |
2014-08-25 | Disentangling the Spin-Parity of a Resonance via the Gold-Plated Decay Mode | Searching for new resonances and finding out their properties is an essential
part of any existing or future particle physics experiment. The nature of a new
resonance is characterized by its spin, charge conjugation, parity, and its
couplings with the existing particles of the Standard Model. If a new resonance
is fou... | 1408.5665v2 |
2019-01-10 | High-cooperativity coupling of a rare-earth spin ensemble to a superconducting resonator using yttrium orthosilicate as a substrate | Yttrium orthosilicate (Y$_2$SiO$_5$, or YSO) has proved to be a convenient
host for rare-earth ions used in demonstrations of microwave quantum memories
and optical memories with microwave interfaces, and shows promise for coherent
microwave--optical conversion owing to its favourable optical and spin
properties. The s... | 1901.03262v2 |
2020-07-15 | Spin resonance linewidths of bismuth donors in silicon coupled to planar microresonators | Ensembles of bismuth donor spins in silicon are promising storage elements
for microwave quantum memories due to their long coherence times which exceed
seconds. Operating an efficient quantum memory requires achieving critical
coupling between the spin ensemble and a suitable high-quality factor resonator
-- this in t... | 2007.07600v3 |
2022-12-07 | Surfing in the phase space of spin-orbit coupling in binary asteroid systems | For a satellite with an irregular shape, which is the common shape among
asteroids, the well-known spin-orbit resonance problem could be changed to a
spin-orbit coupling problem since a decoupled model does not accurately capture
the dynamics of the system. In this paper, having provided a definition for
close binary a... | 2212.03837v1 |
2008-01-08 | Spin-dependent transition rates through exchange coupled localized spin pairs during coherent spin excitation | The effect of exchange interactions within spin pairs on spin-dependent
transport and recombination rates through localized states in semiconductors
during coherent electron spin resonant excitation is studied theoretically. It
is shown that for identical spin systems, significant quantitative differences
are to be exp... | 0801.1304v2 |
2011-10-28 | Spin Lifetime in Small Electron Spin Ensembles Measured by Magnetic Resonance Force Microscopy | Magnetic Resonance Force Microscopy can enable nanoscale imaging of spin
lifetime. We report temperature dependent measurements of the spin correlation
time $\tau_m$ of the statistical fluctuations of the spin polarization---the
spin noise---of ensembles containing $\sim 100$ electron spins by this
technique. Magneto-m... | 1110.6410v1 |
2011-12-29 | Coherent spin dynamics of electrons and holes in semiconductor quantum wells and quantum dots under periodical optical excitation: resonant spin amplification versus spin mode-locking | The coherent spin dynamics of resident carriers, electrons and holes, in
semiconductor quantum structures is studied by periodical optical excitation
using short laser pulses and in an external magnetic field. The generation and
dephasing of spin polarization in an ensemble of carrier spins, for which the
relaxation ti... | 1112.6404v1 |
2013-07-09 | Spin-noise correlations and spin-noise exchange driven by low-field spin-exchange collisions | The physics of spin exchange collisions have fueled several discoveries in
fundamental physics and numerous applications in medical imaging and nuclear
magnetic resonance. We here report on the experimental observation and
theoretical justification of spin-noise exchange, the transfer of spin-noise
from one atomic spec... | 1307.2596v3 |
2020-08-20 | Polarization amplification by spin-doping in nanomagnetic/graphene hybrid systems | The generation of non-equilibrium electron spin polarization, spin transport,
and spin detection are fundamental in many quantum devices. We demonstrate that
a lattice of magnetic nanodots enhances the electron spin polarization in
monolayer graphene via carrier exchange. We probed the spin polarization
through a resis... | 2008.08813v2 |
2019-09-16 | Spin current pumped by resonant skyrmion | Spin pumping is a widely recognized method to generate the spin current in
the spintronics, which is acknowledged as a fundamentally dynamic process
equivalent to the spin-transfer torque. In this work, we theoretically verify
that the oscillating spin current can be pumped from the microwave-motivated
breathing skyrmi... | 1909.07077v1 |
2022-08-19 | Measurement-induced nuclear spin polarization | We propose a nuclear-spin-polarization protocol in a general
evolution-and-measurement framework. The protocol works in a spin-star
configuration, where the central spin is coupled to the surrounding bath
(nuclear) spins by flip-flop interaction of equal strength and is subject to a
sequence of projective measurements ... | 2208.09113v2 |
2023-02-23 | Photo-assisted spin transport in double quantum dots with spin-orbit interaction | We investigate the effect of spin-orbit interaction on the intra- and
interdot particle dynamics of a double quantum dot under ac electric fields.
The former is modeled as an effective ac magnetic field that produces
electric-dipole spin resonance transitions, while the latter is introduced via
spin-flip tunneling ampl... | 2302.12272v2 |
1998-02-25 | Extensive spiral structure and corotation resonance | Spiral density wave theories demand that grand design spiral structure be
bounded, at most, between the inner and outer Lindblad resonances of the spiral
pattern. The corotation resonance lies between the outer and inner Lindblad
resonances. The locations of the resonances are at radii whose ratios to each
other are ra... | 9802325v1 |
2017-06-28 | Towards N-mode parametric electromechanical resonances | The ubiquity of parametric resonance is continually evident in the repeated
experimental observations of this phenomenon in multiple physical systems. The
elementary case of 2 mode parametric resonance of order 1 involves the
excitation of a spectral tone of a parametrically driven mode at a sub-harmonic
frequency of t... | 1708.01660v1 |
2017-06-22 | Multipole resonances and directional scattering by hyperbolic-media antennas | We propose to use optical antennas made out of natural hyperbolic material
hexagonal boron nitride (hBN), and we demonstrate that this medium is a
promising alternative to plasmonic and all-dielectric materials for realizing
efficient subwavelength scatterers and metasurfaces based on them. We
theoretically show that p... | 1706.07259v1 |
2002-07-17 | Exploration of Resonant Continuum and Giant Resonance in the Relativistic Approach | Single-particle resonant-states in the continuum are determined by solving
scattering states of the Dirac equation with proper asymptotic conditions in
the relativistic mean field theory (RMF). The regular and irregular solutions
of the Dirac equation at a large radius where the nuclear potentials vanish are
relativist... | 0207054v1 |
2009-02-15 | Effects of Electric Fields on Heteronuclear Feshbach Resonances in Ultracold $^6\rm{Li}-^{87}\rm{Rb}$ Mixtures | The effects of combined external electric and magnetic fields on elastic
collisions in ultracold Li--Rb mixtures is studied using recently obtained,
experimentally verified potentials. Our analysis provides both quantitative
predictions for and a detailed physical interpretation of the phenomena arising
from electric-f... | 0902.2505v1 |
2017-08-10 | Acoustic resonance in periodically sheared glass | Using molecular dynamics simulation, we study acoustic resonance in
low-temperature glass by applying a small periodic shear at a boundary wall.
Shear wave resonance occurs as the frequency $\omega$ approaches $\omega_\ell=
\pi c_\perp\ell/L$ ($\ell=1, 2, 3,...)$. Here, $c_\perp$ is the transverse
sound speed and $L$ i... | 1708.03166v2 |
2018-03-30 | Bloch-Floquet waves in optical ring resonators | Modal coupling between frequency-degenerate resonances of an optical ring
resonator is a commonly observed phenomenon that results in adverse mode
splitting. Traditionally, this coupling is attributed to Rayleigh scattering of
a propagating electromagnetic wave into its associated degenerate
counter-propagating mode fr... | 1803.11312v1 |
2018-10-05 | Resonant spectra of multipole-bound anions | In multipole-bound anions, the excess electron is attached by a short-range
multipole potential of a neutral molecule. Such anions are prototypical
marginally-bound open quantum systems. In particular, around the critical
multipole moment required to attach the valence electron, multipole-bound
anions exhibit critical ... | 1810.02806v2 |
2014-06-20 | Effective Medium Theory for Elastic Metamaterials in Thin Elastic Plates | An effective medium theory for resonant and non-resonant metamaterials for
flexural waves in thin plates is presented. The theory provides closed-form
expressions for the effective parameters of arrangement of inclusions or
resonators in thin plates as a function of the filling fraction of the
inclusions, their physica... | 1406.5400v2 |
2020-10-31 | Long-term dynamics driven by resonant wave-particle interactions: from Hamiltonian resonance theory to phase space mapping | In this study we consider the Hamiltonian approach for the construction of a
map for a system with nonlinear resonant interaction, including phase trapping
and phase bunching effects. We derive basic equations for a single resonant
trajectory analysis and then generalize them into the map in the
energy/pitch-angle spac... | 2011.00208v1 |
2022-01-19 | Observation of the P-wave Shape Resonance | Partial wave resonances are quasi-bound states that are formed by tunneling
through the centrifugal barrier. Such states are important to collisions that
deviate from the Langevin limit where direct collision path is suppressed due
to quantum symmetry or a potential barrier. In such a case, quantum resonances
play a ma... | 2201.07716v2 |
2023-06-11 | Resonant dynamics of extreme mass-ratio inspirals in a perturbed Kerr spacetime | Extreme mass-ratio inspirals (EMRI) are one of the most sensitive probes of
black hole spacetimes with gravitational wave measurements. In this work, we
systematically analyze the dynamics of an EMRI system near orbital resonances,
assuming the background spacetime is weakly perturbed from Kerr. Using the
action-angle ... | 2306.06576v2 |
2006-12-12 | Electric-Field-Induced Resonant Spin Polarization in a Two-Dimensional Electron Gas | Electric response of spin polarization in two-dimensional electron gas with
structural inversion asymmetry subjected to a magnetic field was studied by
means of the linear and non-linear theory and numerical simulation with the
disorder effect. It was found by Kubo linear reponse theory that an electric
resonant respon... | 0612277v2 |
2007-08-14 | Triplet spin resonance of the Haldane compound with interchain coupling | Spin resonance absorption of the triplet excitations is studied
experimentally in the Haldane magnet PbNi2V2O8. The spectrum has features of
spin S=1 resonance in a crystal field, with all three components, corresponding
to transitions between spin sublevels, being observable. The resonance field is
temperature depende... | 0708.1904v1 |
2007-11-09 | A Digital Switch and Femto-Tesla Magnetic Field Sensor Based on Fano Resonance in a Spin Field Effect Transistor | We show that a Spin Field Effect Transistor, realized with a semiconductor
quantum wire channel sandwiched between half-metallic ferromagnetic contacts,
can have Fano resonances in the transmission spectrum. These resonances appear
because the ferromagnets are half-metallic, so that the Fermi level can be
placed above ... | 0711.1475v1 |
2008-03-03 | Resonant spin-changing collisions in spinor Fermi gases | Spin-changing collisions in trapped Fermi gases may acquire a resonant
character due to the compensation of quadratic Zeeman effect and trap energy.
These resonances are absent in spinor condensates and pseudo-spin-1/2 Fermi
gases, being a characteristic feature of high-spin Fermi gases that allows
spinor physics at la... | 0803.0239v1 |
2009-04-30 | Confluence of resonant laser excitation and bi-directional quantum dot nuclear spin polarization | Resonant laser scattering along with photon correlation measurements have
established the atom-like character of quantum dots. Here, we present
measurements which challenge this identification for a wide range of
experimental parameters: the absorption lineshapes that we measure at magnetic
fields exceeding 1 Tesla ind... | 0904.4767v1 |
2012-12-12 | Feshbach Resonance in a Synthetic Non-Abelian Gauge Field | We study the Feshbach resonance of spin-1/2 particles in the presence of a
uniform synthetic non-Abelian gauge field that produces spin orbit coupling
along with constant spin potentials. We develop a renormalizable quantum field
theory that includes the closed channel boson which engenders the Feshbach
resonance, in t... | 1212.2858v1 |
2013-06-02 | Spin relaxation mechanism in graphene: resonant scattering by magnetic impurities | It is proposed that the observed small (100 ps) spin relaxation time in
graphene is due to resonant scattering by local magnetic moments. At
resonances, magnetic moments behave as spin hot spots: the spin-flip scattering
rates are as large as the spin-conserving ones, as long as the exchange
interaction is greater than... | 1306.0230v1 |
2015-02-26 | Photoelectrical detection of electron spin resonance of nitrogen-vacancy centres in diamond | The protocols for the control and readout of Nitrogen Vacancy (NV) centres
electron spins in diamond offer an advanced platform for quantum computation,
metrology and sensing. These protocols are based on the optical readout of
photons emitted from NV centres, which process is limited by the yield of
photons collection... | 1502.07551v1 |
2015-10-16 | Randomized benchmarking of quantum gates implemented by electron spin resonance | Spin systems controlled and probed by magnetic resonance have been valuable
for testing the ideas of quantum control and quantum error correction. This
paper introduces an X-band pulsed electron spin resonance spectrometer designed
for high-fidelity coherent control of electron spins, including a loop-gap
resonator for... | 1510.04779v3 |
2016-05-03 | Proposal for a quantum delayed-choice experiment with a spin-mechanical setup | We describe an experimentally feasible protocol for performing a variant of
the quantum delayed-choice experiment with massive objects. In this scheme, a
single nitrogen-vacancy (NV) center in diamond driven by microwave fields is
dispersively coupled to a massive mechanical resonator. A double-pulse Ramsey
interferome... | 1605.00935v2 |
2019-05-10 | Resonant orbits for a spinning particle in Kerr spacetime | In the present article, we study the orbital resonance corresponds to an
extended object approximated up to the dipole order term in Kerr spacetime. We
start with the Mathisson-Papapetrou equations under the linear spin
approximation and primarily concentrate on two particular events. First, when
the orbits are nearly ... | 1905.04061v2 |
2021-12-01 | Pulse induced resonance with angular dependent total enhancement of multi-dimensional solid-state NMR correlation spectra | We demonstrate a new resonance condition that obeys the relation
${\Delta}{\delta}=n{\nu}_{R}/2$, where ${\Delta}{\delta}$ is the chemical shift
difference between two homonuclear-coupled spins, ${\nu}_{R}$ is the
magic-angle spinning speed and $n$ is an integer. This modulation on the
rotational resonance recoupling c... | 2112.00438v2 |
2023-03-22 | Temperature dependence of 7Li NMR relaxation rates in Li3InCl6, Li3YCl6, Li1.48Al0.48Ge1.52(PO4)3 and LiPS5Cl | Inorganic solid-state battery electrolytes show high ionic conductivities and
enable the fabrication of all solid-state batteries. In this work, we present
the temperature dependence of spin-lattice relaxation time (T1), spin-spin
relaxation time (T2), and resonance linewidth of the 7Li nuclear magnetic
resonance (NMR)... | 2303.12953v1 |
2024-04-11 | Three-flavor, Full Momentum Space Neutrino Spin Oscillations in Neutron Star Mergers | In the presence of anisotropic neutrino and antineutrino fluxes, the quantum
kinetic equations drive coherent oscillations in neutrino helicity, frequently
referred to as spin oscillations. These oscillations depend directly on the
absolute mass scale and Majorana phase, but are usually too transient to
produce importa... | 2404.08159v1 |
2013-05-17 | Possible realization of an antiferromagnetic Griffiths phase in Ba[Fe(1-x)Mn(x)](2)As(2) | We investigate magnetic ordering in metallic Ba[Fe(1-x)Mn(x)](2)As(2) and
discuss the unusual magnetic phase, which was recently discovered for Mn
concentrations x > 10%. We argue that it can be understood as a Griffiths-type
phase that forms above the quantum critical point associated with the
suppression of the strip... | 1305.4164v1 |
2020-03-28 | Theory of the anomalous spin dynamics of spin-$\frac{1}{2}$ triangular lattice Heisenberg antiferromagnet and its application to Ba$_3$CoSb$_2$O$_9$ | Although it is well accepted that the spin-$\frac{1}{2}$ triangular lattice
Heisenberg antiferromagnet(TLHAF) has a long range ordered ground state, a
thorough understanding of its spin dynamics is still missing. While the linear
spin wave theory(LSWT) predicts three branches of magnon mode in the magnetic
Brillouin zo... | 2003.12688v1 |
2022-11-30 | Vortex-bound solitons in topological superfluid $^3$He | The different superfluid phases of $^3$He are described by $p$-wave order
parameters that include anisotropy axes both in the orbital and spin spaces.
The anisotropy axes characterize the broken symmetries in these macroscopically
coherent quantum many-body systems. The systems' free energy has several
degenerate minim... | 2211.17117v2 |
2004-10-20 | Upper-hybrid and electron-cyclotron waves in a laboratory magnetoplasma: weak spatial dispersion and parametric effects | Radiation of short-wavelength plasma waves is studied in a cold (Te=0.5eV),
large (1.2m length, 70 cm diameter), uniform, Maxwellian laboratory
magnetoplasma in the upper-hybrid frequency range. Although the characteristic
parameter of spatial dispersion b2=VTe2/c2 is very small (b2<10-6), dispersion
characteristics of... | 0410177v1 |
2019-04-17 | Excitation of interfacial waves via near---resonant surface---interfacial wave interactions | We consider interactions between surface and interfacial waves in the two
layer system. Our approach is based on the Hamiltonian structure of the
equations of motion, and includes the general procedure for diagonalization of
the quadratic part of the Hamiltonian. Such diagonalization allows us to derive
the interaction... | 1904.08329v2 |
2022-06-21 | Bright, dark and breather soliton solutions of the generalized long-wave short-wave resonance interaction system | In this paper, a generalized long-wave short-wave resonance interaction
system, which describes the nonlinear interaction between a short-wave and a
long-wave in fluid dynamics, plasma physics and nonlinear optics, is
considered. Using the Hirota bilinear method, the general $N$-bright and
$N$-dark soliton solutions ar... | 2206.10159v1 |
2023-08-11 | Electron resonant interaction with whistler-mode waves around the Earth's bow shock I: the probabilistic approach | Adiabatic heating of solar wind electrons at the Earth's bow shock and its
foreshock region produces transversely anisotropic hot electrons that, in turn,
generate intense high-frequency whistler-mode waves. These waves are often
detected by spacecraft as narrow-band, electromagnetic emissions in the
frequency range of... | 2308.05908v1 |
2000-01-21 | Density Wave States of Non-Zero Angular Momentum | We study the properties of states in which particle-hole pairs of non-zero
angular momentum condense. These states generalize charge- and
spin-density-wave states, in which s-wave particle-hole pairs condense. We show
that the p-wave spin-singlet state of this type has Peierls ordering, while the
d-wave spin-singlet st... | 0001303v1 |
2000-10-20 | Composite Spin Waves, Quasi-Particles and Low Temperature resistivity in Double Exchange Systems | We make a quantum description of the electron low temperature properties of
double exchange materials. In these systems there is a strong coupling between
the core spin and the carriers spin. This large coupling makes the low energy
spin waves to be a combination of ion and electron density spin waves. We study
the for... | 0010312v1 |
2009-10-09 | Spin-waves in the $J_{1a}-J_{1b}-J_{2}$ orthorombic square-lattice Heisenberg models: Application to the iron pnictide materials | Motivated by the observation of spatially anisotropic exchange constants in
the iron pnictide materials, we study the spin-wave spectra of the
$J_{1a}-J_{1b}-J_{2}$ Heisenberg models on a square-lattice with nearest
neighbor exchange $J_{1a}$ along x and $J_{1b}$ along y axis and a second
neighbor exchange $J_2$. We fo... | 0910.1793v1 |
2010-09-25 | Micro-Structured Ferromagnetic Tubes for Spin Wave Excitation | Micron scale ferromagnetic tubes placed on the ends of ferromagnetic CoTaZr
spin waveguides are explored in order to enhance the excitation of Backward
Volume Magnetostatic Spin Waves. The tubes produce a closed magnetic circuit
about the signal line of the coplanar waveguide and are, at the same time,
magnetically con... | 1009.4986v1 |
2014-09-08 | Dynamic control of spin wave spectra using spin-polarized currents | We describe a method of controlling the spin wave spectra dynamically in a
uniform nanostripe waveguide through spin-polarized currents. A stable periodic
magnetization structure is observed when the current flows vertically through
the center of nanostripe waveguide. After being excited, the spin wave is
transmitted a... | 1409.2421v2 |
2014-06-14 | Electric-field coupling to spin waves in a centrosymmetric ferrite | We experimentally demonstrate that the spin-orbit interaction can be utilized
for direct electric-field tuning of the propagation of spin waves in a
single-crystal yttrium iron garnet magnonic waveguide. Magnetoelectric coupling
not due to the spin-orbit interaction, and hence an order of magnitude weaker,
leads to ele... | 1406.3675v1 |
2017-10-03 | Spin-wave chirality and its manifestations in antiferromagnets | As first demonstrated by Tang and Cohen in chiral optics, the asymmetry in
the rate of electromagnetic energy absorption between left and right
enantiomers is determined by an optical chirality density [1]. Here, we
demonstrate that this effect can exist in magnetic spin systems. By
constructing a formal analogy with e... | 1710.01023v2 |
2020-05-22 | Signatures of a liquid-crystal transition in spin-wave excitations of skyrmions | Understanding the spin-wave excitations of chiral magnetic order, such as the
skyrmion crystal (SkX), is of fundamental interest to confirm such exotic
magnetic order. The SkX is realized by competing Dzyaloshinskii-Moriya and
ferromagnetic-exchange interactions with a magnetic field or anisotropy. Here
we compute the ... | 2005.11399v2 |
2021-06-05 | Extraordinary transverse spin: Hidden vorticity of the energy flow and momentum distributions in propagating light fields | Spatially inhomogeneous fields of electromagnetic guided modes exhibit a
complex of extraordinary dynamical properties such as the
polarization-dependent transverse momentum, helicity-independent transverse
spin, spin-associated non-reciprocity and unidirectional propagation, etc.
Recently, the remarkable relationship ... | 2106.02849v1 |
2022-04-27 | Gravitational waves from small spin-up and spin-down events of neutron stars | It was recently reported that there exists a population of "glitch
candidates" and "anti-glitch candidates" which are effectively small spin-ups
and spin-downs of a neutron star with magnitudes smaller than those seen in
typical glitches. The physical origin of these small events is not yet
understood. In this paper, w... | 2204.12869v3 |
2022-06-23 | Anisotropic magnon damping by zero-temperature quantum fluctuations in ferromagnetic CrGeTe$_3$ | Spin and lattice are two fundamental degrees of freedom in a solid, and their
fluctuations about the equilibrium values in a magnetic ordered crystalline
lattice form quasiparticles termed magnons (spin waves) and phonons (lattice
waves), respectively. In most materials with strong spin-lattice coupling
(SLC), the inte... | 2206.11962v1 |
2022-09-14 | Quantum Spin-Wave Theory for non-collinear Spin Structures, a Review | In this review, we trace the evolution of the quantum spin-wave theory
treating non-collinear spin configurations. Non-collinear spin configurations
are consequences of the frustration created by competing interactions. They
include simple chiral magnets due to competing nearest-neighbor (NN) and
next-NN interactions a... | 2209.06771v1 |
2022-10-10 | Charge distribution and spin textures in magic-angle twisted bilayer graphene | We examine the coexisting spin and charge density waves as a possible ground
state of the magic-angle twisted bilayer graphene. When interactions are not
included, the spectrum of the material has 4 (8 if spin is taken into account)
almost flat almost degenerate bands. Interactions break down the degeneracy
forming an ... | 2210.04670v1 |
2010-02-26 | Resonance clustering in wave turbulent regimes: Integrable dynamics | Two fundamental facts of the modern wave turbulence theory are 1) existence
of power energy spectra in $k$-space, and 2) existence of "gaps" in this
spectra corresponding to the resonance clustering. Accordingly, three wave
turbulent regimes are singled out: \emph{kinetic}, described by wave kinetic
equations and power... | 1002.4994v1 |
2016-04-10 | Inherently Unstable Internal Gravity Waves due to Resonant Harmonic Generation | Here we show that there exist internal gravity waves that are inherently
unstable, that is, they cannot exist in nature for a long time. The instability
mechanism is a one-way (irreversible) harmonic-generation resonance that
permanently transfers the energy of an internal wave to its higher harmonics.
We show that, in... | 1604.02640v4 |
2021-10-05 | Sparse metapiles for shear wave attenuation in half-spaces | We show that shear waves traveling towards the surface of a half-space medium
can be attenuated via buried one-dimensional arrays of resonators -- here
called metapiles -- arranged according to sparse patterns around a site to be
isolated. Our focus is on shear waves approaching the surface along a direction
perpendicu... | 2110.02202v2 |
2020-10-16 | Topology of the Warm plasma dispersion relation at the second Harmonic Electron Cyclotron Resonance Layer | The Warm Plasma Dispersion Relation, for waves in the electron cyclotron
resonance range of frequencies, can be cast into the form of a bi-quadratic
equation for $N_\perp$, where the coefficients are a function of $N_\perp^2$
and an iterative procedure is required to obtain a solution. However, this
iterative procedure... | 2010.08363v1 |
2022-05-01 | Relativistic electron precipitation by EMIC waves: importance of nonlinear resonant effects | Relativistic electron losses in Earth's radiation belts are usually
attributed to electron resonant scattering by electromagnetic waves. One of the
most important wave mode for such scattering is the electromagnetic ion
cyclotron (EMIC) mode. Within the quasi-linear diffusion framework, the
cyclotron resonance of relat... | 2205.00515v1 |
2023-02-05 | Super-harmonically resonant swirling waves in longitudinally forced circular cylinders | Resonant sloshing in circular cylinders was studied by Faltinsen et al.
(2016), whose theory was used to describe steady-state resonant waves due to
time-harmonic container's elliptic orbits. In the limit of longitudinal
container motions, a symmetry-breaking of the planar wave solution occurs, with
clockwise and anti-... | 2302.02443v1 |
1998-10-20 | Unconventional ferromagnetic and spin-glass states of the reentrant spin glass Fe0.7Al0.3 | Spin excitations of single crystal Fe0.7Al0.3 were investigated over a wide
range in energy and reciprocal space with inelastic neutron scattering. In the
ferromagnetic phase, propagating spin wave modes become paramagnon-like
diffusive modes beyond a critical wave vector q0, indicating substantial
disorder in the long... | 9810265v2 |
2008-11-17 | Dynamics in two-leg spin ladder with a four-spin cyclic interaction | We study two-leg Heisenberg ladder with four-spin cyclic interaction using
the (dynamical) density-matrix renormalization group method. We demonstrate the
dependence of the low-lying excitations in the spin wave, staggered dimer
order, and scalar-chirality order structure factors on the four-spin cyclic
interaction. We... | 0811.2456v1 |
2011-03-20 | The spin excitations of the block-antiferromagnetic K$_{0.8}$Fe$_{1.6}$Se$_2$ | We study the spin excitations of the newly discovered block-antiferromagnetic
state in K$_{0.8}$Fe$_{1.6}$Se$_2$ using an effective spin Hamiltonian
suggested in the literature. Interestingly in addition to the usual Goldstone
mode, there exists three other "optical" spin wave branches. These spin
excitations are the a... | 1103.3884v1 |
2015-11-26 | Spin textures and spin-wave excitations in doped Dirac-Weyl semimetals | We study correlations and magnetic textures of localized spins, doped in
three-dimensional Dirac semimetals. An effective field theory for magnetic
moments is constructed by integrating out the fermionic degrees of freedom. The
spin correlation shows a strong anisotropy, originating from spin-momentum
locking of Dirac ... | 1511.08381v1 |
2014-11-05 | Hybrid optical-electrical detection of donor electron spins with bound excitons in silicon | Electrical detection of spins is an essential tool in understanding the
dynamics of spins in semiconductor devices, providing valuable insights for
applications ranging from optoelectronics and spintronics to quantum
information processing. For electron spins bound to shallow donors in silicon,
bulk electrically-detect... | 1411.1324v1 |
2015-07-31 | Electron spin resonance spectroscopy of small ensemble paramagnetic spins using a single nitrogen-vacancy center in diamond | A nitrogen-vacancy (NV) center in diamond is a promising sensor for nanoscale
magnetic sensing. Here we report electron spin resonance (ESR) spectroscopy
using a single NV center in diamond. First, using a 230 GHz ESR spectrometer,
we performed ensemble ESR of a type-Ib sample crystal and identified a
substitutional si... | 1507.08744v2 |
1998-04-06 | Three-dimensional waves generated at Lindblad resonances in thermally stratified disks | We analyze the linear, 3D response to tidal forcing of a disk that is thin
and thermally stratified in the direction normal to the disk plane. We model
the vertical disk structure locally as a polytrope which represents a disk of
high optical depth. We solve the 3D gas-dynamic equations semi-analytically in
the neighbo... | 9804063v1 |
2004-10-11 | The mechanism of Swing Absorption of fast magnetosonic waves in inhomogeneous media | The recently suggested swing interaction between fast magnetosonic and
Alfv\'en waves (2002) is generalized to inhomogeneous media. We show that the
fast magnetosonic waves propagating across an applied non-uniform magnetic
field can parametrically amplify the Alfv\'en waves propagating along the field
through the peri... | 0410277v1 |
2022-01-07 | Formation of probability density waves and probability current density waves by excitation and decay of a doublet of quasistationary states of a three-barrier heterostructure upon scattering of gaussian wave packets | A numerical-analytical simulation of scattering by a three-barrier
heterostructure of an electronic Gaussian wave packet, the spectral width of
which is on the order of the distance between the levels of the doublet of
quasi-stationary states, is carried out. It is shown that as a result of
scattering, damped waves of ... | 2201.02288v1 |
2023-07-26 | Beating resonance patterns and extreme power flux skewing in anisotropic elastic plates | Elastic waves in anisotropic media can exhibit a power flux that is not
collinear with the wave vector. This has notable consequences for waves guided
in a plate. Through laser-ultrasonic experiments, we evidence remarkable
phenomena due to slow waves in a single crystal silicon wafer. Waves exhibiting
power flux ortho... | 2307.14259v2 |
2023-08-07 | Nonlinear Landau resonant interaction between whistler waves and electrons: Excitation of electron acoustic waves | Electron acoustic waves (EAWs), as well as electron-acoustic solitary
structures, play a crucial role in thermalization and acceleration of electron
populations in Earth's magnetosphere. These waves are often observed in
association with whistler-mode waves, but the detailed mechanism of EAW and
whistler wave coupling ... | 2308.03938v2 |
2015-05-12 | Nonreciprocal spin wave propagation in chiral-lattice ferromagnets | Spin current, i.e. the flow of spin angular momentum or magnetic moment, has
recently attracted much attention as the promising alternative for charge
current with better energy efficiency. Genuine spin current is generally
carried by the spin wave (propagating spin precession) in insulating
ferromagnets, and should ho... | 1505.02868v1 |
2019-01-24 | Spin-Wave Theory for the Scalar Chiral Phase in the Multiple-Spin Exchange Model on a Triangular Lattice | We study the effects of quantum fluctuations on a non-coplanar tetrahedral
spin structure, which has a scalar chiral order, in the spin-1/2 multiple-spin
exchange model with up to the six-spin exchange interactions on a triangular
lattice. We find that, in the linear spin-wave approximation, the tetrahedral
structure s... | 1901.08198v1 |
2019-07-05 | Theory for shift current of bosons: Photogalvanic spin current in ferrimagnetic and antiferromagnetic insulators | We theoretically study the optical generation of dc spin current (i.e., a
spin-current solar cell) in ordered antiferromagnetic and ferrimagnetic
insulators, motivated by a recent study on the laser-driven spinon spin current
in noncentrosymmetric quantum spin chains [H. Ishizuka and M. Sato, Phys. Rev.
Lett. 122, 1977... | 1907.02734v1 |
2022-09-26 | Imprinting spatial helicity structure of vector vortex beam on spin texture in semiconductors | We present the transfer of the spatially variant polarization of
topologically structured light to the spatial spin texture in a semiconductor
quantum well. The electron spin texture, which is a circular pattern with
repeating spin-up and spin-down states whose repetition rate is determined by
the topological charge, i... | 2209.12496v1 |
2018-03-02 | Neutron spin resonance in the 112-type iron-based superconductor | We use inelastic neutron scattering to study the low-energy spin excitations
of 112-type iron pnictide Ca$_{0.82}$La$_{0.18}$Fe$_{0.96}$Ni$_{0.04}$As$_{2}$
with bulk superconductivity below $T_c=22$ K. A two-dimensional spin resonance
mode is found around $E=$ 11 meV, where the resonance energy is almost
temperature in... | 1803.00779v2 |
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