publicationDate stringlengths 1 2.79k | title stringlengths 1 36.5k ⌀ | abstract stringlengths 1 37.3k ⌀ | id stringlengths 9 47 |
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2013-06-19 | Asymmetric Ferromagnetic Resonance, Universal Walker Breakdown, and Counterflow Domain Wall Motion in the Presence of Multiple Spin-Orbit Torques | We study the motion of several types of domain wall profiles in spin-orbit
coupled magnetic nanowires and also the influence of spin-orbit interaction on
the ferromagnetic resonance of uniform magnetic films. We extend previous
studies by fully considering not only the field-like contribution from the
spin-orbit torque... | 1306.4680v1 |
2016-05-13 | Experimental elucidation of the origin of the `double spin resonances' in Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ | We report a combined study of the spin resonances and superconducting gaps
for underdoped ($T_c=19$ K), optimally doped ($T_c=25$ K), and overdoped
($T_c=19$ K) Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ single crystals with inelastic
neutron scattering and angle resolved photoemission spectroscopy. We find a
quasi two dimensional... | 1605.04257v2 |
2017-11-13 | Spin properties of dense near-surface ensembles of nitrogen-vacancy centres in diamond | We present a study of the spin properties of dense layers of near-surface
nitrogen-vacancy (NV) centres in diamond created by nitrogen ion implantation.
The optically detected magnetic resonance contrast and linewidth, spin
coherence time, and spin relaxation time, are measured as a function of
implantation energy, dos... | 1711.04429v2 |
2019-06-02 | Optical spin locking of a solid-state qubit | Quantum control of solid-state spin qubits typically involves pulses in the
microwave domain, drawing from the well-developed toolbox of magnetic resonance
spectroscopy. Driving a solid-state spin by optical means offers a high-speed
alternative, which in the presence of limited spin coherence makes it the
preferred ap... | 1906.00427v2 |
2020-05-28 | Spin-Pumping-Induced Non-Linear Electric Current on the Surface of a Ferromagnetic Topological Insulator | We investigate the spin-pumping-induced electric current on the surface of a
three-dimensional topological insulator hybridized with a ferromagnet, namely,
ferromagnetic topological insulator. In order to do this, we establish the
microscopic formalism and construct the perturbation theory using a Keldysh
Green's funct... | 2005.13850v1 |
2020-10-19 | The spin-spin model and the capture into the double synchronous resonance | The aim of this article is to propose a model, that is a planar version of
the Full Two-Body Problem, and discuss the existence and stability of a
relevant periodic solution. Consider two homogeneous ellipsoids orbiting around
each other in fixed coplanar Keplerian orbits. Moreover, their respective spin
axes are assum... | 2010.09354v1 |
2001-01-06 | Electron and Nuclear Spin Dynamics in Antiferromagnetic Molecular Rings | We study theoretically the spin dynamics of the ferric wheel, an
antiferromagnetic molecular ring. For a single nuclear or impurity spin coupled
to one of the electron spins of the ring, we calculate nuclear and electronic
spin correlation functions and show that nuclear magnetic resonance (NMR) and
electron spin reson... | 0101073v2 |
2001-07-11 | Experimental evidence of the spin selection rule in KLL Auger transition | With on- and off- resonant excitation photons, spin-resolved Auger electron
spectra of epitaxial CrO$_{2}$ thin films show an experimental evidence of the
spin-selective KLL Auger decay. The on-resonance O KLL Auger electrons are
found to be highly spin-polarized, while the off-resonance ones with almost
zero spin pola... | 0107234v2 |
2003-05-01 | Spin effects and baryon resonance dynamics in phi-meson photoproduction at few GeV | The diffractive $\phi$-meson photoproduction amplitude is dominated by the
Pomeron exchange process and contains the terms that govern the spin-spin and
spin-orbital interactions.
We show that these terms are responsible for the spin-flip transitions at
forward photoproduction angles and appear in the angular distrib... | 0305002v2 |
2008-08-14 | Co-resonant enhancement of spin-torque critical currents in spin-valves with synthetic-ferrimagnet free-layer | It is experimentally shown that the critical current for onset of spin-torque
instability in current-perpendicular-to-plane spin-valves can be strongly
enhanced using "synthetic ferrimagnet" free-layers of form FM1/Ru/FM2
(FM=ferrromagnet). However, this enhancement occurs for only one polarity of
bias current. A two-m... | 0808.2015v2 |
2009-12-18 | Stochastic resonance of a nanomagnet excited by spin transfer torque | Spin transfer torque from spin-polarized electrical current can excite
large-amplitude magnetization dynamics in metallic ferromagnets of nanoscale
dimensions. Since magnetic anisotropy energies of nanomagnets are comparable to
the thermal energy scale, temperature can have a profound effect on the
dynamics of a nanoma... | 0912.3842v1 |
2011-05-17 | Magnetic Resonance Force Microscopy of paramagnetic electron spins at millikelvin temperatures | Magnetic Resonance Force Microscopy (MRFM) is a powerful technique to detect
a small number of spins that relies on force-detection by an ultrasoft
magnetically tipped cantilever and selective magnetic resonance manipulation of
the spins. MRFM would greatly benefit from ultralow temperature operation,
because of lower ... | 1105.3395v3 |
2012-08-27 | Probing dynamics of an electron-spin ensemble via a superconducting resonator | We study spin relaxation and diffusion in an electron-spin ensemble of
nitrogen impurities in diamond at low temperature (0.25-1.2 K) and polarizing
magnetic field (80-300 mT). Measurements exploit mode- and
temperature-dependent coupling of hyperfine-split sub-ensembles to the
resonator. Temperature-independent spin l... | 1208.5473v1 |
2012-10-23 | Spatial distribution of dynamically polarized nuclear spins in electron spin domains in the $ν= 2/3$ fractional quantum Hall state studied by nuclear electric resonance | Nuclear electric resonance (NER) is based on nuclear magnetic resonance
mediated by spatial oscillations of electron spin domains excited by a radio
frequency (RF) electric field, and it allows us to investigate the spatial
distribution of the nuclear spin polarization around domain walls (DWs). Here,
NER measurements ... | 1210.6223v2 |
2013-02-07 | Scheme for a spin-based quantum computer employing induction detection and imaging | A theoretical spin-based scheme for performing a variety of quantum
computations is presented. It makes use of an array of multiple identical
computer vectors of phosphorus-doped silicon where the nuclei serve as logical
qubits and the electrons as working qubits. The spins are addressed by a
combination of electron sp... | 1302.1653v1 |
2013-07-15 | Time Constants of Spin-Dependent Recombination Processes | We present experiments to systematically study the time constants of
spin-dependent recombination processes in semiconductors using pulsed
electrically detected magnetic resonance (EDMR). The combination of
time-programmed optical excitation and pulsed spin manipulation allows us to
directly measure the recombination t... | 1307.4039v1 |
2014-05-27 | Anisotropy of the molecular magnet V$_{15}$ spin Hamiltonian detected by high-field electron spin resonance | The molecular compound K$_6$[V$^{IV}_{15}$As$^{III}_6$O$_{42}$(H$_2$O)]
$\cdot$ 8H$_2$O, in short V$_{15}$, has shown important quantum effects such as
coherent spin oscillations. The details of the spin quantum dynamics depend on
the exact form of the spin Hamiltonian. In this study, we present a precise
analysis of t... | 1405.7000v1 |
2015-03-23 | Highly selective detection of individual nuclear spins using the rotary echo on an electron spin as a probe | We consider an electronic spin, such as a nitrogen-vacancy (NV) center in
diamond, weakly coupled to a large number (bath) of nuclear spins, and
subjected to the Rabi driving with a periodically alternating phase (multiple
rotary echo). We show that by switching the driving phase synchronously with
the precession of a ... | 1503.06811v1 |
2015-05-28 | Driving and detecting ferromagnetic resonance in insulators with the spin Hall effect | We demonstrate the generation and detection of spin-torque ferromagnetic
resonance in Pt/YIG bilayers. A unique attribute of this system is that the
spin Hall effect lies at the heart of both the generation and detection
processes and no charge current is passing through the insulating magnetic
layer. When the YIG unde... | 1505.07791v1 |
2015-08-06 | Interface-driven spin-torque ferromagnetic resonance by Rashba coupling at the interface between non-magnetic materials | The Rashba-Edelstein effect stems from the interaction between the electron's
spin and its momentum induced by spin-orbit interaction at an interface or a
surface. It was shown that the inverse Rashba-Edelstein effect can be used to
convert a spin- into a charge current. Here, we demonstrate that a Bi/Ag Rashba
interfa... | 1508.01410v1 |
2015-10-19 | Atomic-like spin noise in solid-state demonstrated with manganese in cadmium telluride | Spin noise spectroscopy is an optical technique which can probe spin
resonances non-perturbatively. First applied to atomic vapours, it revealed
detailed information about nuclear magnetism and the hyperfine interaction. In
solids, this approach has been limited to carriers in semiconductor
heterostructures. Here we sh... | 1510.05885v1 |
2017-09-17 | Intrinsic spin-orbit coupling gap and the evidence of a topological state in graphene | In 2005 Kane & Mele[C. L. Kane and E. J. Mele, Phys. Rev. Lett. 95, 226801
(2005)], predicted that at sufficiently low energy, graphene exhibits a
topological state of matter with an energy gap generated by the atomic
spin-orbit interaction. However, this intrinsic gap has not been measured to
this date. In this letter... | 1709.05705v2 |
2017-03-20 | Imaging the Real Space Structure of the Spin Fluctuations in an Iron-based superconductor | Spin fluctuations are a leading candidate for the pairing mechanism in high
temperature superconductors, supported by the common appearance of a distinct
resonance in the spin susceptibility across the cuprates, iron-based
superconductors and many heavy fermion materials. The information we have about
the spin resonanc... | 1703.07002v2 |
2021-03-31 | Room temperature antiferromagnetic resonance and inverse spin-Hall voltage in canted antiferromagnets | We study theoretically and experimentally the spin pumping signals induced by
the resonance of canted antiferromagnets with Dzyaloshinskii-Moriya interaction
and demonstrate that they can generate easily observable inverse spin-Hall
voltages. Using a bilayer of hematite/heavy metal as a model system, we measure
at room... | 2103.16872v1 |
2021-12-29 | Multiorbital spin-triplet pairing and spin resonance in the heavy-fermion superconductor $\mathrm{UTe_2}$ | The heavy-fermion system $\mathrm{UTe_2}$ is a candidate for spin-triplet
superconductivity, which is of considerable interest to quantum engineering.
Among the outstanding issues is the nature of the pairing state. A recent
surprising discovery is the observation of a resonance in the spin excitation
spectrum at an an... | 2112.14750v1 |
2022-06-12 | Interference phenomena in Josephson junctions with ferromagnetic bilayers: Spin-triplet correlations and resonances | We study the Josephson effect in planar $SF_1F_2S$ junctions that consist of
conventional $s$-wave superconductors ($S$) connected by two metallic
monodomain ferromagnets ($F_1$ and $F_2$) with arbitrary transparency of
interfaces. We solve the scattering problem in the clean limit based on the
Bogoliubov-de Gennes equ... | 2206.05770v3 |
2022-11-17 | Stable Atomic Magnetometer in Parity-Time Symmetry Broken Phase | Random motion of spins is usually detrimental in magnetic resonance
experiments. The spin diffusion in non-uniform magnetic fields causes
broadening of the resonance and limits the sensitivity and the spectral
resolution in applications like magnetic resonance spectroscopy. Here, by
observation of the parity-time ($PT$... | 2211.09354v1 |
2023-06-27 | Spin-Polarized Photoelectrons in the Vicinity of Spectral Features | We investigate the spin polarization of photoelectrons emitted from noble
gases, in the vicinity of spectral features such as Fano resonances, Cooper
minima, and giant resonances. Since these features all exhibit spatio-spectral
coupling, they are intrinsically linked to the spin polarization through the
spin-orbit cou... | 2306.15665v1 |
2023-07-23 | Programmable Quantum Processors based on Spin Qubits with Mechanically-Mediated Interactions and Transport | Solid state spin qubits are promising candidates for quantum information
processing, but controlled interactions and entanglement in large, multi-qubit
systems are currently difficult to achieve. We describe a method for
programmable control of multi-qubit spin systems, in which individual
nitrogen-vacancy (NV) centers... | 2307.12193v1 |
2002-06-21 | Novel excitonic states in quantum Hall systems: Bound states of spin waves and a valence band hole | If the Zeeman energy is small, the lowest energy excitations of a two
dimensional electron gas at filling factor nu=1 are spin waves (spin flip
excitations). At nu slightly larger (smaller) than unity, reversed spin
electrons (spin holes) can form bound states with K spin waves that are known
as skyrmions, S_K^- (antis... | 0206413v1 |
2010-07-31 | Random walk approach to spin dynamics in a two-dimensional electron gas with spin-orbit coupling | We introduce and solve a semi-classical random walk (RW) model that describes
the dynamics of spin polarization waves in zinc-blende semiconductor quantum
wells. We derive the dispersion relations for these waves, including the
Rashba, linear and cubic Dresselhaus spin-orbit interactions, as well as the
effects of an e... | 1008.0132v2 |
2012-12-30 | Edge spin excitations and reconstructions of integer quantum Hall liquids | We study the effect of electron-electron interaction on the charge and spin
structures at the edge of integer quantum Hall liquids, under three different
kinds of confining potentials. Our exact diagonalization calculation for small
systems indicates that the low energy excitations of \nu=1 ferromagnetic state
are boso... | 1212.6743v2 |
2014-12-09 | Spin excitations in the nematic phase and the metallic stripe spin-density wave phase of iron pnictides | We present a general study of the magnetic excitations within a weak-coupling
five-orbital model relevant to itinerant iron pnictides. As a function of
enhanced electronic correlations, the spin excitations in the symmetry broken
spin-density wave phase evolve from broad low-energy modes in the limit of weak
interactio... | 1412.2912v1 |
2017-12-01 | Spin waves and stability of zigzag order in the Hubbard model with spin-dependent hopping terms - Application to the honeycomb lattice compounds ${\rm Na_2 Ir O_3}$ and ${\rm α- Ru Cl_3}$ | Spin waves in the zigzag ordered state on a honeycomb lattice are
investigated within a Hubbard model with spin-dependent hopping terms. Roles of
the emergent Kitaev, Heisenberg, Dzyaloshinskii-Moriya, and
symmetric-off-diagonal spin interactions are investigated on the stability of
the zigzag order. While the DM inter... | 1712.00198v2 |
2019-10-17 | Optical storage for 0.53 seconds in a solid-state atomic frequency comb memory using dynamical decoupling | Quantum memories with long storage times are key elements in long-distance
quantum networks. The atomic frequency comb (AFC) memory in particular has
shown great promise to fulfill this role, having demonstrated multimode
capacity and spin-photon quantum correlations. However, the memory storage
times have so-far been ... | 1910.08009v2 |
2023-07-25 | Spin waves in bilayers of transition-metal dichalcogenides | Van der Waals magnetic materials are currently of great interest as materials
for applications in future ultrathin nanoelectronics and nanospintronics. Due
to weak coupling between individual monolayers, these materials can be easily
obtained in the monolayer and bilayer forms. The latter are of specific
interest as th... | 2307.13414v2 |
2023-12-28 | Collective spin oscillations in a magnetized graphene sheet | We investigate collective spin excitations of graphene electrons with
short-ranged interactions and subject to the external Zeeman magnetic field. We
find that in addition to the familiar Silin spin wave, a collective spin-flip
excitation that reduces to the uniform precession when the wave's momentum
approaches zero, ... | 2312.16782v1 |
2024-01-10 | Electrical Non-Hermitian Control of Topological Magnon Spin Transport | Magnonic topological phases realize chiral edge spin waves that are protected
against backscattering, potentially enabling highly efficient spin transport.
Here we show that the spin transport through these magnonic chiral edge states
can be electrically manipulated by non-Hermitian control. We consider the
paradigmati... | 2401.04967v2 |
2005-12-06 | Polarization transfer in pulsar magnetosphere | Propagation of radio waves in the ultrarelativistic magnetized
electron-positron plasma of pulsar magnetosphere is considered. Polarization
state of the original natural waves is found to vary markedly on account of the
wave mode coupling and cyclotron absorption. The change is most pronounced when
the regions of mode ... | 0512140v1 |
1997-03-06 | Partial-Wave Amplitudes and Resonances in pbar + p -> pi + pi | Partial wave amplitudes have been extracted from accurate data on pbar + p ->
pi + pi by a method which incorporates the theoretical constraints of
analyticity and crossing symmetry. The resulting solution gives a good fit to
the annihilation data and is also consistent with the wealth of information in
the crossed cha... | 9703253v1 |
2006-12-18 | Application of Dressing Method for Long Wave-Short Wave Resonance Interaction Equation | In this paper we investigate the application of Zakharov - Shabat dressing
method to (2+1) - dimensional long wave - short wave resonance interaction
equation (LSRI). Using this method we can construct the exact N - soliton
solution of this equation depending on arbitrary constants. It contains both
solutions which don... | 0612041v1 |
2000-11-15 | Electromagnetic oscillations in periodic mediums outside the passbands | It was usually assumed that the resonator based on a waveguide has the eigen
oscillations that are formed by interference of two waves which propagate in
different directions and have equal amplitudes. These patterns are usually
called standing waves. We have shown that the eigen oscillations of a resonator
which is fi... | 0011028v2 |
2005-10-14 | Nontrapping arrest of Langmuir wave damping near the threshold amplitude | Evolution of a Langmuir wave is studied numerically for finite amplitudes
slightly above the threshold which separates damping from nondamping cases.
Arrest of linear damping is found to be a second-order effect due to ballistic
evolution of perturbations, resonant power transfer between field and
particles, and organi... | 0510131v3 |
2009-11-27 | Photoproduction of pions and properties of baryon resonances from a Bonn-Gatchina partial wave analysis | Masses, widths and photocouplings of baryon resonances are determined in a
coupled-channel partial wave analysis of a large variety of data. The
Bonn-Gatchina partial wave formalism is extended to include a decomposition of
t- and u-exchange amplitudes into individual partial waves. The multipole
transition amplitudes ... | 0911.5277v2 |
2010-10-21 | Switchable metamaterial reflector/absorber for different polarized electromagnetic waves | We demonstrate a controllable electromagnetic wave reflector/absorber for
different polarizations with metamaterial involving electromagnetic resonant
structures coupled with diodes. Through biasing at different voltages to turn
ON and OFF the diodes, we are able to switch the structure between nearly total
reflection ... | 1010.4377v1 |
2011-10-11 | Wave and Particle Limit for Multiple Barrier Tunneling | The particle approach to one-dimensional potential scattering is applied to
non relativistic tunnelling between two, three and four identical barriers. We
demonstrate as expected that the infinite sum of particle contributions yield
the plane wave results. In particular, the existence of resonance/transparency
for twin... | 1110.2433v1 |
2012-06-09 | Wood's anomalies and excitation of cyclic Sommerfeld resonances under plane wave scattering from a single dielectric cylinder at oblique incidence of light | In this paper we consider a process of plane wave scattering from a single
dielectric cylinder at oblique incidence under which it is possible to excite
long range cyclic Sommerfeld waves (CSWs) and consequently cyclic Sommerfeld
resonances (CSRs) of different orders. It is shown that the CSRs are analogous
to Wood's a... | 1206.1942v1 |
2012-12-22 | Tunneling-induced high efficiency four-wave mixing in an asymmetric quantum wells | An asymmetric double quantum wells (QWs) structure with resonant tunneling is
suggested to achieve high efficient four wave mixing (FWM). We analytically
demonstrate that the resonant tunneling can induce high efficient mixing wave
in such a semiconductor structure with a low light pump wave. In particular,
the FWM con... | 1212.5699v1 |
2014-07-22 | Compact infrared continuous-wave double-pass single-frequency doubly-resonant OPO | We demonstrate a compact continuous-wave single-frequency doubly-resonant
optical parametric oscillator (DRO) in a double-pass pump configuration with a
control of the relative phase between the reflected waves. The nested DRO
cavity allows single longitudinal mode operation together with low threshold
and high efficie... | 1407.5867v1 |
2023-07-13 | Landscape of wave focusing and localisation at low frequencies | High-contrast scattering problems are special among classical wave systems as
they allow for strong wave focusing and localisation at low frequencies. We use
an asymptotic framework to develop a landscape theory for high-contrast systems
that resonate in a subwavelength regime. Our from-first-principles asymptotic
anal... | 2307.06729v2 |
2000-07-16 | High frequency resonant experiments in Fe$_8$ molecular clusters | Precise resonant experiments on Fe$_{8}$ magnetic clusters have been
conducted down to 1.2 K at various tranverse magnetic fields, using a
cylindrical resonator cavity with 40 different frequencies between 37 GHz and
110 GHz. All the observed resonances for both single crystal and oriented
powder, have been fitted by t... | 0007265v1 |
2008-02-25 | Atomic hyperfine resonances in a magnetic quadrupole field | The quantum resonances of an atom possessing a single valence electron which
shows hyperfine interaction with the nucleus is investigated in the presence of
a three dimensional magnetic quadrupole field. Particular emphasis is put on
the study of the interplay of the hyperfine and quadrupole forces. Analyzing
the under... | 0802.3645v1 |
2008-12-17 | Baryon resonances in the mean field approach and a simple explanation of the Theta+ pentaquark | We suggest to classify baryon resonances as single-quark states in a mean
field, and/or as its collective excitations. Identifying the Roper resonance
N(1440), the nucleon resonance N(1535), and the singlet hyperon Lambda(1405) as
single-quark excitations, we find that there must be an exotic S=+1 baryon
resonance Thet... | 0812.3418v1 |
2012-08-17 | Bayesian inference of the resonance content of p(gamma,K+)Lambda | A Bayesian analysis of the world's p(gamma,K+)Lambda data is presented. We
adopt a Regge-plus-resonance framework featuring consistent couplings for
nucleon resonances up to spin J=5/2, and evaluate 2048 model variants
considering all possible combinations of 11 candidate resonances. The best
model, labeled RPR-2011, i... | 1208.3618v1 |
2013-10-12 | Resonant dynamics of chromium condensates | We numerically study the dynamics of a spinor chromium condensate in low
magnetic fields. We show that the condensate evolution has a resonant character
revealing rich structure of resonances similar to that already discussed in the
case of alkali-atoms condensates. This indicates that dipolar resonances occur
commonly... | 1310.3384v1 |
2018-03-12 | Probing unconventional superconductivity in proximitized graphene by impurity scattering | We demonstrate how potential impurities are a very powerful tool for
determining the pairing symmetry in graphene proximity-coupled to a
spin-singlet superconductor. All d-wave states are characterized by subgap
resonances, with spatial patterns clearly distinguishing between nodal and
chiral d-wave symmetry, while s-w... | 1803.04455v2 |
2022-06-24 | Meridional composite pulses for low-field magnetic resonance | We discuss procedures for error-tolerant spin control in environments that
permit transient, large-angle reorientation of magnetic bias field. Short
sequences of pulsed, non-resonant magnetic field pulses in a laboratory-frame
meridional plane are derived. These are shown to have band-pass excitation
properties compara... | 2206.12025v1 |
1994-06-02 | Inelastic Neutron Scattering from the Spin Ladder Compound (VO)2P2O7 | We present results from an inelastic neutron scattering experiment on the
candidate Heisenberg spin ladder vanadyl pyrophosphate, (VO)2P2O7. We find
evidence for a spin-wave excitation gap of $E_{gap} = 3.7\pm 0.2$ meV, at a
band minimum near $Q=0.8 A^{-1}$. This is consistent with expectations for
triplet spin waves i... | 9406016v1 |
2002-01-31 | The spin-1/2 Heisenberg antiferromagnet on a 1/7-depleted triangular lattice: Ground-state properties | A linear spin-wave approach, a variational method and exact diagonlization
are used to investigate the magnetic long-range order (LRO) of the spin-1/2
Heisenberg antiferromagnet on a two-dimensional 1/7-depleted triangular (maple
leaf) lattice consisting of triangles and hexagons only. This lattice has z=5
nearest neig... | 0201584v1 |
2004-07-06 | Effect of Spin Current on Uniform Ferromagnetism: Domain Nucleation | Large spin current applied to a uniform ferromagnet leads to a spin-wave
instability as pointed out recently.
In this paper, it is shown that such spin-wave instability is absent in a
state containing a domain wall, which indicates that nucleation of magnetic
domains occurs above a certain critical spin current.
Th... | 0407116v2 |
2005-10-20 | Low-energy Effective Theory for Spin Dynamics of Fluctuating Stripes | We derive an effective Hamiltonian for spin dynamics of fluctuating smectic
stripes from the t-J model in the weak coupling limit t >> J. Besides the
modulation of spin magnitude, the high energy hopping term would induce a
low-energy anti-ferromagnetic interaction between two neighboring ``blocks of
spins". Based on t... | 0510529v1 |
2006-03-01 | Stochastic theory of spin-transfer oscillator linewidths | We present a stochastic theory of linewidths for magnetization oscillations
in spin-valve structures driven by spin-polarized currents. Starting from a
nonlinear oscillator model derived from spin-wave theory, we derive Langevin
equations for amplitude and phase fluctuations due to the presence of thermal
noise. We fin... | 0603019v1 |
2009-01-20 | Role of Bound Magnon in Magnetic Domain Wall Motion | We report on a quantum description of the domain wall (DW) motion under a
spin current. A bound magnon, which is the zero mode of DW, is found to play a
dominant role in DW dynamics. The bound magnon acquires its inertia by the hard
axis anisotropy and is a free particle even under the spin current. The full
transfer o... | 0901.3066v1 |
2009-03-24 | A Finite-temperature First-principles Approach to Spin Fluctuation in BaFe_2As_2 | Thermodynamic flunctuations in BaFe2As2 is addressed with a first-principles
formulation of the Helmholtz energy by accounting for the mixture of various
electronic states each distinguished by different spin orientation
distributions. We find that it is the spin exchange coupling in the inter-plane
c direction that di... | 0903.4094v1 |
2010-05-27 | Spin transport in coupled spinor Bose gases | We report direct measurements of spin transport in a trapped, partially
condensed spinor Bose gas. Detailed analyses of spin flux in this
out-of-equilibrium quantum gas are performed by monitoring the flow of atoms in
different hyperfine spin states. The main mechanisms for motion in this system
are exchange scattering... | 1005.5174v2 |
2012-07-28 | Excitations and spin correlations near the interface of two three-dimensional Heisenberg antiferromagnets | Magnetic excitations and spin correlations near the interface of two
spin-$\frac12$ Heisenberg antiferromagnets are considered using the spin-wave
approximation. When the interaction between boundary spins differs essentially
from exchange constants inside the antiferromagnets, quasi-two-dimensional spin
waves appear i... | 1207.6688v1 |
2012-11-16 | Dependence of the Switching Current Density on the Junction Sizes in Spin Transfer Torque | We investigate the dependence of switching current density on the junction
sizes in the spin transfer torque nanopillar structures by using micromagnetic
simulations. While the macro spin model predicts weak dependence of switching
current density on the junction sizes, we find that the switching current
density is a s... | 1211.3785v1 |
2013-12-04 | Excitations and quasi-one-dimensionality in field-induced nematic and spin density wave states | We study the excitation spectrum and dynamical response functions for several
quasi-one-dimensional spin systems in magnetic fields without dipolar spin
order transverse to the field. This includes both nematic phases, which harbor
"hidden" breaking of spin-rotation symmetry about the field and have been
argued to occu... | 1312.0992v1 |
2014-07-29 | Spin-Hall Nano-oscillator: a micromagnetic study | This letter studies the dynamical behavior of spin-Hall nanoscillators from a
micromagnetic point of view. The model parameters have been identified by
reproducing recent experimental data quantitatively. Our results indicate that
a strongly localized mode is observed for in-plane bias fields such as in the
experiments... | 1407.7655v1 |
2015-08-06 | Helimagnetic thin films: surface reconstruction, surface spin-waves and magnetization | Quantum properties of a helimagnetic thin film of simple cubic lattice with
Heisenberg spin model are studied using the Green's function method. We find
that the spin configuration across the film is strongly non uniform. Using the
exactly determined spin configuration we calculate the spin-wave spectrum and
the layer ... | 1508.01367v1 |
2015-11-10 | Charge and spin density in the helical Luttinger liquid | The weakly interacting helical Luttinger liquid, due to spin momentum
locking, is characterized by extremely peculiar local observables: we show that
the density-density correlation functions do not exhibit signatures of Friedel
and Wigner oscillations, and that spin-spin correlation functions, which are
strongly aniso... | 1511.03157v1 |
2016-07-12 | Thermal spin dynamics of yttrium iron garnet | Yttrium Iron Garnet is the prototypical material used to study pure spin
currents. It is a complex material with 20 magnetic atoms in the unit cell.
Almost all theories and experimental analysis approximates this complicated
material to a simple ferromagnet with a single spin wave mode. We use the
method of atomistic s... | 1607.03263v1 |
2017-06-15 | Misaligned Spin Merging Black Holes in Modified Gravity (MOG) | A promising signature of coalescing black holes is their spin angular
distribution. We consider the aLIGO collaboration gravitational wave
measurements of the binary black hole spins and the predicted modified gravity
(MOG) preference for misaligned spins of the coalescing black holes. In MOG,
during the merger of two ... | 1706.05035v1 |
2018-04-10 | Conversion of Heat into Charge Current by the Spin Wave Anomalous Nernst Effect | A novel process of spin conversion from a temperature gradient to a
transverse voltage is addressed in this paper, viz. the anomalous Nernst effect
(ANE) in a ferromagnetic metal. We report that an additional voltage is
superposed on the conventional anomalous Nernst voltage in FePt crystalline
thin films. The dynamics... | 1804.03751v1 |
2008-06-24 | Signal propagation in time-dependent spin transport | This paper analyzes theoretically the signal propagation in spin transport by
modulating the current passing through magnetic multilayers. Using a
macroscopic description of spin transport based on the dynamical Boltzmann
equation, we show that time-dependent spin transport possesses a wave-like
character that leads to... | 0806.3843v3 |
2022-12-11 | Spin Excitation in Coupled Honeycomb Lattice Ni$_2$InSbO$_6$ | We performed an inelastic neutron scattering experiment on a polycrystalline
sample of a helimagnet Ni$_2$InSbO$_6$ to construct the spin Hamiltonian.
Well-defined spin-wave excitation with a band energy of 20 meV was observed
below $T_{N} = 76$ K. Using the linear spin-wave theory, the spectrum was
reasonably reproduc... | 2212.05413v1 |
2023-10-26 | Gravitational Spin Hall Effect of Dirac Particle and the Weak Equivalence Principle | We present a spin-induced none-geodesic effect of Dirac wave packets in a
static uniform gravitational field. Our approach is based on the
Foldy-Wouthuysen transformation of Dirac equation in a curved spacetime, which
predicts the gravitational spin-orbit coupling. Due to this coupling, we find
that the dynamics of the... | 2310.17581v1 |
2023-12-30 | Ultrafast X-ray Diffraction Probe of Coherent Spin-state Dynamics in Molecules | We propose an approach to probe coherent spin-state dynamics of molecules
using circularly polarized hard x-ray pulses. For the dynamically aligned
nitric oxide molecules in a coherent superposition spin-orbit coupled
electronic state that can be prepared through stimulated Raman scattering, we
demonstrate the capabili... | 2401.00259v1 |
2008-10-28 | Three-wave interactions of dispersive plasma waves propagating parallel to the magnetic field | Three-wave interactions of plasma waves propagating parallel to the mean
magnetic field at frequencies below the electron cyclotron frequency are
considered. We consider Alfv\'en--ion-cyclotron waves,
fast-magnetosonic--whistler waves, and ion-sound waves. Especially the weakly
turbulent low-beta plasmas like the solar... | 0810.5059v2 |
2020-07-06 | Searching for missing D'Alembert waves in nonlinear system: Nizhnik-Novikov-Veselov equation | In linear science, the wave motion equation with general D'Alembert wave
solutions is one of the fundamental models. The D'Alembert wave is an arbitrary
travelling wave moving along one direction under a fixed model (material)
dependent velocity. However, the D'Alembert waves are missed when nonlinear
effects are intro... | 2007.02903v1 |
2022-04-09 | Maxwell Matter Waves | Maxwell matter waves emerge from a perspective, complementary to de
Broglie's, that matter is fundamentally a wave phenomenon whose particle
aspects are revealed by quantum mechanics. Their quantum mechanical description
is derived through the introduction of a matter vector potential, having
frequency $\omega_0$, to S... | 2204.04549v1 |
2011-06-02 | Kinetics of Spin Relaxation in Wires and Channels: Boundary Spin Echo and Tachyons | In this paper we use a spin kinetic equation to study spin polarization
dynamics in 1D wires and 2D channels. This approach is valid in both diffusive
and ballistic spin transport regimes and, therefore, more general than the
usual spin drift-diffusion equations. In particular, we demonstrate that in
infinite 1D wires ... | 1106.0355v1 |
2015-11-04 | Compositeness of baryonic resonances: Applications to the Delta(1232), N(1535), and N(1650) resonances | We present a formulation of the compositeness for baryonic resonances in
order to discuss the meson-baryon molecular structure inside the resonances.
For this purpose, we derive a relation between the residue of the scattering
amplitude at the resonance pole position and the two-body wave function of the
resonance in a... | 1511.01200v2 |
2013-10-29 | Self-Quenching of Nuclear Spin Dynamics in Central Spin Problem | We consider, in the framework of the central spin $s=1/2$ model, driven
dynamics of two electrons in a double quantum dot subject to hyperfine
interaction with nuclear spins and spin-orbit coupling. The nuclear subsystem
dynamically evolves in response to Landau-Zener singlet-triplet transitions of
the electronic subsy... | 1310.7847v1 |
2016-11-17 | Inductive detection of field-like and damping-like AC inverse spin-orbit torques in ferromagnet/normal metal bilayers | Functional spintronic devices rely on spin-charge interconversion effects,
such as the reciprocal processes of electric field-driven spin torque and
magnetization dynamics-driven spin and charge flow. Both damping-like and
field-like spin-orbit torques have been observed in the forward process of
current-driven spin to... | 1611.05798v2 |
1999-04-20 | The dimer-RVB State of the Four-Leg Heisenberg Ladder: Interference among Resonances | We study the ground state of the 4-leg spin ladder using a dimer-RVB ansatz
and the Lanczos method. Besides the well known resonance mechanism between
valence bond configurations we find novel interference effects among nearby
resonances. | 9904286v1 |
1999-09-08 | Non-Resonant Effects in Implementation of Quantum Shor Algorithm | We simulate Shor's algorithm on an Ising spin quantum computer. The influence
of non-resonant effects is analyzed in detail. It is shown that our ``$2\pi
k$''-method successfully suppresses non-resonant effects even for relatively
large values of the Rabi frequency. | 9909027v2 |
2014-12-15 | Charmed baryonic resonances in medium | We discuss the behavior of dynamically-generated charmed baryonic resonances
in matter within a unitarized coupled-channel model consistent with heavy-quark
spin symmetry. We analyze the implications for the formation of $D$-meson bound
states in nuclei and the propagation of $D$ mesons in heavy-ion collisions from
RHI... | 1412.4811v1 |
1992-05-29 | Resonant Spin-Flavor Precession of Neutrinos As a Possible Solution to the Solar Neutrino Problem | Recent developments of the resonant neutrino spin-flavor precession scenario
and its applications to the solar neutrino problem are reviewed. We discuss in
particular the possibilities of reconciliation of strong time variations of the
solar neutrino flux observed in the Homestake ${}^{37}\$Cl experiment with
little or... | 9205244v1 |
2009-09-13 | Refocussing off-resonant spin-1/2 evolution using spinor behavior | A systematic method is presented for constructing increasingly precise
sequences to refocus off-resonant spin evolution with severely limited control
amplitude. Sequences obtained should be readily applicable to the case of
electron spin qubits in quantum dots with random nuclear fields, and other
qubit systems with sy... | 0909.2449v1 |
2020-09-15 | Nucleon resonances with higher spins in soft-wall AdS/QCD | We present a study of electroexcitation of nucleon resonances with higher
spins, in a soft-wall AdS/QCD model, comparing our results with existing data
from the CLAS Collaboration at JLab, from MAMI, and other experiments. | 2009.07115v1 |
2021-06-18 | An Automated Global Method for Extraction of Distance Distributions from Electron Spin Resonance Pulsed Dipolar Signals | Electron spin resonance (ESR) pulsed dipolar spectroscopy (PDS) is used
effectively in measuring nano-meter range distances for protein structure
prediction. The current global approach in extracting the distance distribution
from time domain PDS signal has multiple limitations. We present a parameter
free global metho... | 2106.10306v1 |
2021-06-29 | Optimal Background Correction in Double Quantum Coherence Electron Spin Resonance Spectroscopy for Accurate Data Analysis | Electron spin resonance (ESR) pulsed dipolar spectroscopy (PDS) is used in
protein 3D structure determination. However, the accuracy of the signal
analysis depends heavily on the background correction process. In this work, we
derive the functional forms of double quantum coherence (DQC) ESR signal in
typical frozen sa... | 2106.15733v1 |
2015-06-16 | Evidence of quantum dimer excitations in Sr$_3$Ir$_2$O$_7$ | The magnetic excitation spectrum in the bilayer iridate Sr$_3$Ir$_2$O$_7$ has
been investigated using high-resolution resonant inelastic x-ray scattering
(RIXS) performed at the iridium L$_3$ edge and theoretical techniques. A study
of the systematic dependence of the RIXS spectrum on the orientation of the
wavevector ... | 1506.04877v1 |
2016-02-04 | Magnetic anisotropy in the frustrated spin chain compound $β$-TeVO$_4$ | Isotropic and anisotropic magnetic behavior of the frustrated spin chain
compound $\beta$-TeVO$_4$ is reported. Three magnetic transitions observed in
zero magnetic field are tracked in fields applied along different
crystallographic directions using magnetization, heat capacity, and
magnetostriction measurements. Qual... | 1602.01632v2 |
2020-11-03 | Multigaps superconductivity at unconventional Lifshitz transition in a 3D Rashba heterostructure at atomic limit | It is well known that the critical temperature of multi-gap superconducting
3D heterostructures at atomic limit (HAL) made of a superlattice of atomic
layers with an electron spectrum made of several quantum subbands can be
amplified by a shape resonance driven by the contact exchange interaction
between different gaps... | 2011.02311v2 |
2023-06-16 | Bose-Einstein condensation of a two-magnon bound state in a spin-one triangular lattice | Interactions of collective excitations often lead to rich emergent phenomena
in many-particle quantum systems. In ordered magnets, the elementary
excitations are spin waves (magnons), which obey Bose-Einstein statistics.
Similar to the Cooper pairs in superconductors, magnons can be paired into
bound states under attra... | 2306.09695v1 |
1998-05-19 | The effect of an isothermal atmosphere on the propagation of three-dimensional waves in a thermally stratified accretion disk | We extend our analysis of the three-dimensional response of a vertically
polytropic disk to tidal forcing at Lindblad resonances by including the
effects of a disk atmosphere. The atmosphere is modeled as an isothermal layer
that joins smoothly on to an underlying polytropic layer. The launched wave
progressively enter... | 9805254v1 |
2019-06-19 | Bimodal directional propagation of wind-generated ocean surface waves | Over the years, the directional distribution functions of wind-generated wave
field have been assumed to be unimodal. While details of various functional
forms differ, these directional models suggest that waves of all spectral
components propagate primarily in the wind direction. The beamwidth of the
directional distr... | 1906.07984v1 |
2016-11-01 | Particle Scattering off of Right-Handed Dispersive Waves | Resonant scattering of fast particles off low frequency plasma waves is a
major process determining transport characteristics of energetic particles in
the heliosphere and contributing to their acceleration. Usually, only Alfv\'en
waves are considered for this process, although dispersive waves are also
present through... | 1611.00310v1 |
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