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2017-02-14 | Quantum magnetic resonance microscopy | Magnetic resonance spectroscopy is universally regarded as one of the most
important tools in chemical and bio-medical research. However, sensitivity
limitations typically restrict imaging resolution to length scales greater than
10 \mu m. Here we bring quantum control to the detection of chemical systems to
demonstrat... | 1702.04418v1 |
2022-11-30 | Fabrication and Characterization of Magnetic-Field-Resilient MoRe Superconducting Coplanar Waveguide Resonators | Magnetic-field-resilient superconducting coplanar waveguide (SCPW) resonators
are essential for developing integrated quantum circuits of various qubits and
quantum memory devices. Molybdenum-Rhenium (MoRe), which is a disordered
superconducting alloy forming a highly transparent contact to the graphene and
carbon nano... | 2211.16948v1 |
2002-03-12 | T-shaped spin filter with a ring resonator | A planar ballistic structure is predicted to be highly effective in filtering
electron spin from an unpolarized source into two output fluxes with the
opposite and practically pure spin polarizations. The operability of the
proposed device relies on the peculiar spin-dependent transmission properties
of the T-shaped co... | 0203261v1 |
2005-12-30 | Orbital Kondo effect and spin polarized transport through quantum dots | The coherent spin dependent transport through a set of two capacitively
coupled quantum dots placed in a magnetic field is considered within the
equation of motion method. The magnetic field breaks the spin degeneracy. For
special choices of gate voltages the dot levels are tuned to resonance and the
orbital Kondo effe... | 0512726v1 |
2000-09-25 | Spin Relaxation Resonances Due to the Spin-Axis Interaction in Dense Rubidium and Cesium Vapor | Resonances in the magnetic decoupling curves for the spin relaxation of dense
alkali-metal vapors prove that much of the relaxation is due to the spin-axis
interaction in triplet dimers. Initial estimates of the spin-axis coupling
coefficients for the dimers are 290 MHz for Rb; 2500 MHz for Cs. | 0009072v1 |
2007-05-14 | Cooling Torsional Nanomechanical Vibration by Spin-Orbit Interactions | We propose and study a spin-orbit interaction based mechanism to actively
cool down the torsional vibration of a nanomechanical resonator made by
semiconductor materials. We show that the spin-orbit interactions of electrons
can induce a coherent coupling between the electron spins and the torsional
modes of nanomechan... | 0705.1964v1 |
2007-05-15 | Resonant Cooling of Nuclear Spins in Quantum Dots | We propose to use the spin-blockade regime in double quantum dots to reduce
nuclear spin polarization fluctuations in analogy with optical Doppler cooling.
The Overhauser shift brings electron levels in and out of resonance, creating
feedback to suppress fluctuations. Coupling to the disordered nuclear spin
background ... | 0705.2177v1 |
2007-07-12 | The two dimensional spin and its resonance fringe | Violation of Bell's Inequalities gives experimental evidence for the
existence of a spin 1/2 which has two simultaneous axes of spin quantization
rather than one. These couple to form a resonance state, called the spin
fringe, and this quantum effect is solely responsible for violation of Bell's
Inequalities within thi... | 0707.1763v2 |
2007-10-26 | Spin-Dependent Scattering off Neutral Antimony Donors in 28-Si Field-Effect Transistors | We report measurements of spin-dependent scattering of conduction electrons
by neutral donors in an accumulation-mode field-effect transistor formed in
isotopically enriched silicon. Spin-dependent scattering was detected using
electrically detected magnetic resonance where the spectra show resonant
changes in the sour... | 0710.5164v2 |
2008-08-28 | Electric excitation of spin resonance in antiferromagnetic conductors | Antiferromagnetism couples electron spin to its orbital motion, thus allowing
excitation of electron-spin transitions by an ac electric rather than magnetic
field - with absorption, exceeding that of common electron spin resonance at
least by four orders of magnitude. In addition to potential applications in
spin elect... | 0808.3946v2 |
2008-09-24 | Spin polarization control through resonant states in an Fe/GaAs Schottky barrier | Spin polarization of the tunnel conductivity has been studied for Fe/GaAs
junctions with Schottky barriers. It is shown that band matching of resonant
interface states within the Schottky barrier defines the sign of spin
polarization of electrons transported through the barrier. The results account
very well for experi... | 0809.4094v1 |
2009-11-04 | D'yakonov-Perel' spin relaxation in InSb/AlInSb quantum wells | We investigate theoretically the D'yakonov-Perel' spin relaxation time by
solving the eight-band Kane model and Poisson equation self-consistently. Our
results show distinct behavior with the single-band model due to the anomalous
spin-orbit interactions in narrow band-gap semiconductors, and agree well with
the experi... | 0911.0855v1 |
2010-11-30 | Diagonalization-free implementation of spin relaxation theory for large spin systems | The Liouville space spin relaxation theory equations are reformulated in such
a way as to avoid the computationally expensive Hamiltonian diagonalization
step, replacing it by numerical evaluation of the integrals in the generalized
cumulant expansion. The resulting algorithm is particularly useful in the cases
where t... | 1012.0033v1 |
2010-12-16 | Spin Hall Effect induced by resonant scattering on impurities in metals | The Spin Hall Effect (SHE) is a promising way for transforming charge
currents into spin currents in spintronic devices. Large values of the Spin
Hall Angle, the characteristic parameter of the yield of this transformation,
have been recently found in noble metals doped with nonmagnetic impurities. We
show that this ca... | 1012.3657v1 |
2013-02-19 | The temperature dependence of quantum spin pumping generated using electron spin resonance with three-magnon splittings | On the basis of the Schwinger-Keldysh formalism, we have closely investigated
the temperature dependence of quantum spin pumping by electron spin resonance.
We have clarified that three-magnon splittings excite non-zero modes of magnons
and characterize the temperature dependence of quantum spin pumping. Our
theoretica... | 1302.4777v1 |
2013-04-12 | Suppression of Spin-Exchange Relaxation Using Pulsed Parametric Resonance | We demonstrate that spin-exchange dephasing of Larmor precession at
near-earth-scale fields is effectively eliminated by dressing the alkali-metal
atom spins in a sequence of AC-coupled 2-pi pulses, repeated at the Larmor
precession frequency. The contribution of spin-exchange collisions to the
spectroscopic line width... | 1304.3737v1 |
2013-10-10 | Effect of gate-driven spin resonance on the conductance of a one-dimensional quantum wire | We consider quasiballistic electron transmission in a one-dimensional quantum
wire subject to both time-independent and periodic potentials of a finger gate
that results in a coordinate- and time-dependent Rashba-type spin-orbit
coupling. A spin-dependent conductance is calculated as a function of external
constant mag... | 1310.2914v1 |
2013-11-22 | A standard format and a graphical user interface for spin system specification | We introduce a simple and general XML format for spin system description that
is the result of extensive consultations within Magnetic Resonance community
and unifies under one roof all major existing spin interaction specification
conventions. The format is human-readable, easy to edit and easy to parse using
standard... | 1311.5770v1 |
2014-04-09 | Current-induced spin torque resonance of magnetic insulators | We formulate a theory of the AC spin Hall magnetoresistance (SMR) in a
bilayer system consisting of a magnetic insulator such as yttrium iron garnet
(YIG) and a heavy metal such as platinum (Pt). We derive expressions for the DC
voltage generation based on the drift-diffusion spin model and quantum
mechanical boundary ... | 1404.2360v2 |
2016-05-10 | Electron spin resonance from NV centers in diamonds levitating in an ion trap | We report observations of the Electron Spin Resonance (ESR) of Nitrogen
Vacancy (NV) centers in diamonds that are levitating in an ion trap. Using a
needle Paul trap operating under ambient conditions, we demonstrate efficient
microwave driving of the electronic spin and show that the spin properties of
deposited diamo... | 1605.02953v2 |
2021-10-13 | Signatures of electronic correlations and spin-susceptibility anisotropy in nuclear magnetic resonance | We present a methodology for probing the details of electronic susceptibility
through minimally-invasive nuclear magnetic resonance techniques. Specifically,
we classify electron-mediated long-range interactions in an ensemble of nuclear
spins by revealing their effect on simple spin echo experiments. We find that
puls... | 2110.06811v1 |
2008-06-26 | Non-demolishing measurement of a spin qubit state via Fano resonance | Fano resonances are proposed to perform a measurement of a spin state
(whether it is up or down) of a single electron in a quantum dot via a
spin-polarized current in an adjacent quantum wire. Rashba-like spin-orbit
interaction in a quantum dot prohibits spin-flip events (Kondo-like
phenomenon). That ensures the measur... | 0806.4339v2 |
2017-03-09 | Off resonance coupling between a cavity mode and an ensemble of driven spins | We study the interaction between a superconducting cavity and a spin
ensemble. The response of a cavity mode is monitored while simultaneously the
spins are driven at a frequency close to their Larmor frequency, which is tuned
to a value much higher than the cavity resonance. We experimentally find that
the effective d... | 1703.03311v1 |
2002-07-03 | The Generalized Parton Distributions program at Jefferson Lab | The Generalized Parton Distributions (GPD) have drawn a lot of interest from
the theoretical community since 1997, but also from the experimental community
and especially at Jefferson Lab. First, the results for Deeply Virtual Compton
Scattering (DVCS) at 4.2 GeV beam energy have recently been extracted from CLAS
data.... | 0207016v1 |
2005-10-17 | Tensor Ayy and vector Ay analyzing powers in the H(d,d')X and ^{12}C(d,d')X reactons at initial deuteron momenta of 9 GeV/c in the region of baryonic resonances excitation | The angular dependence of the tensor Ayy and vector Ay analyzing powers in
the inelastic scattering of deuterons with a momentum of 9.0 GeV/c on hydrogen
and carbon have been measured. The range of measurements corresponds to the
baryonic resonance excitation with masses 2.2--2.6 GeV/c^2. The Ayy data being
in good agr... | 0510050v1 |
2011-07-14 | High temperature thermodynamics of strongly interacting s-wave and p-wave Fermi gases in a harmonic trap | We theoretically investigate the high-temperature thermodynamics of a
strongly interacting trapped Fermi gas near either s-wave or p-wave Feshbach
resonances, using a second order quantum virial expansion. The second virial
coefficient is calculated based on the energy spectrum of two interacting
fermions in a harmonic... | 1107.2740v1 |
2013-10-03 | Nonequilibrium Statistical Mechanics of Systems with Long-Range Interactions: Ubiquity of Core-Halo Distributions | Systems with long-range (LR) forces, for which the interaction potential
decays with the interparticle distance with an exponent smaller than the
dimensionality of the embedding space, remain an outstanding challenge to
statistical physics. The internal energy of such systems lacks extensivity and
additivity. Although ... | 1310.1078v1 |
2015-02-10 | Two distinct kinetic regimes for the relaxation of light-induced superconductivity in La$_{1.675}$Eu$_{0.2}$Sr$_{0.125}$CuO$_{4}$ | We address the kinetic competition between charge striped order and
superconductivity in La$_{1.675}$Eu$_{0.2}$Sr$_{0.125}$CuO$_{4}$. Ultrafast
optical excitation is tuned to a mid-infrared vibrational resonance that
destroys charge order and promptly establishes transient coherent interlayer
coupling in this material.... | 1502.03028v2 |
2016-04-04 | Temperature dependent excitonic effects in the optical properties of single-layer MoS$_2$ | Temperature influences the performance of two-dimensional materials in
optoelectronic devices. Indeed, the optical characterization of these materials
is usually realized at room temperature. Nevertheless most {\it ab-initio}
studies are yet performed without including any temperature effect. As a
consequence, importan... | 1604.00943v1 |
2016-06-13 | Characterization of oxygen defects in diamond by means of density functional theory calculations | Point defects in diamond are of high interest as candidates for realizing
solid state quantum bits, bioimaging agents, or ultrasensitive electric or
magnetic field sensors. Various artificial diamond synthesis methods should
introduce oxygen contamination in diamond, however, the incorporation of oxygen
into diamond cr... | 1606.03859v2 |
2016-08-29 | Sub-micrometer yttrium iron garnet LPE films with low ferromagnetic resonance losses | Using liquid phase epitaxy (LPE) technique (111) yttrium iron garnet (YIG)
films with thicknesses of ~100 nm and surface roughnesses as low as 0.3 nm have
been grown as a basic material for spin-wave propagation experiments in
microstructured waveguides. The continuously strained films exhibit nearly
perfect crystallin... | 1608.08043v1 |
2018-01-31 | Topological Flat Band and Parity-Time Symmetry in a Honeycomb Lattice of Coupled Resonant Optical Waveguides | Two-dimensional (2D) coupled resonant optical waveguide (CROW), exhibiting
topological edge states, provides an efficient platform for designing
integrated topological photonic devices. In this paper, we propose an
experimentally feasible design of 2D honeycomb CROW photonic structure. The
characteristic optical system... | 1801.10289v1 |
2018-05-11 | Exciton states in monolayer MoSe2 and MoTe2 probed by upconversion spectroscopy | Transitions metal dichalcogenides (TMDs) are direct semiconductors in the
atomic monolayer (ML) limit with fascinating optical and spin-valley
properties. The strong optical absorption of up to 20 % for a single ML is
governed by excitons, electron-hole pairs bound by Coulomb attraction. Excited
exciton states in MoSe$... | 1805.04440v1 |
2018-10-09 | Determination of the pole position of the lightest hybrid meson candidate | Mapping states with explicit gluonic degrees of freedom in the light sector
is a challenge, and has led to controversies in the past. In particular, the
experiments have reported two different hybrid candidates with spin-exotic
signature, pi1(1400) and pi1(1600), which couple separately to eta pi and eta'
pi. This pict... | 1810.04171v2 |
2012-09-25 | Resonating valence bond trial wave functions with both static and dynamically determined Marshall sign structure | We construct energy-optimized resonating valence bond wavefunctions as a
means to sketch out the zero-temperature phase diagram of the square-lattice
quantum Heisenberg model with competing nearest- (J1) and
next-nearest-neighbour (J2) interactions. Our emphasis is not on achieving an
accurate representation of the mag... | 1209.5743v2 |
2018-04-03 | Kinetic frustration induced supersolid in the $S=1/2$ kagome lattice antiferromagnet in a magnetic field | We examine instabilities of the plateau phases in the spin-1/2 kagome-lattice
antiferromagnet in an applied field by means of degenerate perturbation theory,
and find some emergent supersolid phases below the $m=5/9$ plateau. The wave
functions of the plateau phases in a magnetic field have the particular
construction ... | 1804.00789v3 |
2021-08-18 | Charge Order and Fluctuations in Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+δ}$ Revealed by $^{63,65}$Cu-Nuclear Magnetic Resonance | The discovery of a magnetic-field-induced charge-density-wave (CDW) order in
the pseudogap state via nuclear magnetic resonance (NMR) studies has
highlighted the importance of "charge" in the physics of high
transition-temperature ($T_{\rm c}$) superconductivity in copper oxides
(cuprates). Herein, after briefly review... | 2108.08150v1 |
2019-01-31 | Do topology and ferromagnetism cooperate at the EuS/Bi$_2$Se$_3$ interface? | We probe the local magnetic properties of interfaces between the insulating
ferromagnet EuS and the topological insulator Bi$_2$Se$_3$ using low energy
muon spin rotation (LE-$\mu$SR). We compare these to the interface between EuS
and the topologically trivial metal, titanium. Below the magnetic transition of
EuS, we d... | 1901.11347v1 |
2019-12-05 | Iron-based superconductors: tales from the nuclei | High-temperature superconductivity in Fe-based pnictides and chalcogenides
has been one of the most significant recent discoveries in condensed matter
physics and has attracted remarkable attention in the last decade. These
materials are characterized by a complex fermiology and, as a result, feature a
wide range of el... | 1912.02603v1 |
2021-03-04 | Observation of the near-threshold intruder $0^-$ resonance in $^{12}$Be | A resonant state at $3.21^{+0.12}_{-0.04}$\,MeV, located just above the
one-neutron separation threshold, was observed for the first time in $^{12}$Be
from the $^{11}$Be\,$(d,p)^{12}$Be one-neutron transfer reaction in inverse
kinematics. This state is assigned a spin-parity of $0^-$, according to the
distorted-wave Bo... | 2103.02785v1 |
2024-02-01 | Element-specific and high-bandwidth ferromagnetic resonance spectroscopy with a coherent, extreme ultraviolet (EUV) source | We developed and applied a tabletop, ultrafast, high-harmonic generation
(HHG) source to measure the element-specific ferromagnetic resonance (FMR) in
ultra-thin magnetic alloys and multilayers on an opaque Si substrate. We
demonstrate a continuous wave bandwidth of 62 GHz, with promise to extend to
100 GHz or higher. ... | 2402.00783v1 |
2024-03-05 | Note: Harnessing Tellurium Nanoparticles in the Digital Realm Plasmon Resonance, in the Context of Brewster's Angle and the Drude Model for Fake News Adsorption in Incomplete Information Games | This note explores the innovative application of soliton theory and plasmonic
phenomena in modeling user behavior and engagement within digital health
platforms. By introducing the concept of soliton solutions, we present a novel
approach to understanding stable patterns of health improvement behaviors over
time. Addit... | 2403.03239v1 |
1995-09-04 | Spin-wave condensation and quantum melting of long-range antiferromagnetic order in t-J model | Ground state wave function of two-dimensional t-J model is found at doping
close to half filling. It is shown that the condensation of Cooper pairs
(superconducting pairing of mobile holes) and the condensation of spin-waves
into spin-liquid state are closely connected. The effective spectrum of $S=1$
excitations, spin... | 9509011v1 |
1995-09-13 | Spin-wave excitation spectra and spectral weights in square lattice antiferromagnets | Using a recently developed method for calculating series expansions of the
excitation spectra of quantum lattice models, we obtain the spin-wave spectra
for square lattice, $S=1/2$ Heisenberg-Ising antiferromagnets. The calculated
spin-wave spectrum for the Heisenberg model is close to but noticeably
different from a u... | 9509077v1 |
1995-11-17 | The incoherent part of the spin-wave polarization operator in the t-J model | A calculation of the spin-wave polarization operator is very important for
the analysis of the magnetic structure of high temperature superconductors. We
analyze the significance of the incoherent part of the spin-wave polarization
operator within the framework of the t-J model. This part is calculated
analytically for... | 9511087v2 |
1996-02-08 | Isotropic Spin Wave Theory of Short-Range Magnetic Order | We present an isotropic spin wave (ISW) theory of short-range order in
Heisenberg magnets, and apply it to square lattice S=1/2 and S=1
antiferromagnets. Our theory has three identical (isotropic) spin wave modes,
whereas the conventional spin wave theory has two transverse and one
longitudinal mode. We calculate tempe... | 9602044v1 |
1997-12-23 | The edge theory of ferromagnetic quantum Hall states | We propose an effective low-energy theory for ferromagnetic Hall states. It
describes the charge degrees of freedom, on the edge, by a (1 + 1) dimensional
chiral boson theory, and the spin degrees of freedom by the (2 + 1)dimensional
quantum ferromagnet theory in the spin-wave approximation. The usual chiral
boson theo... | 9712279v1 |
1999-07-12 | Dynamics of the Compact, Ferromagnetic ν=1 Edge | We consider the edge dynamics of a compact, fully spin polarized state at
filling factor $\nu=1$. We show that there are two sets of collective
excitations localized near the edge: the much studied, gapless, edge
magnetoplasmon but also an additional edge spin wave that splits off below the
bulk spin wave continuum. We... | 9907175v1 |
2000-10-16 | Spin waves in ultrathin ferromagnetic overlayers | The influence of a non-magnetic metallic substrate on the spin wave
excitations in ultrathin ferromagnetic overlayers is investigated for different
crystalline orientations. We show that spin wave dumping in these systems occur
due to the tunneling of holes from the substrate into the overlayer, and that
the spin wave ... | 0010215v1 |
2002-03-19 | Spin-wave spectrum of copper metaborate in the commensurate phase 10K<T<21K | We have investigated the spin-wave spectrum of copper metaborate,
CuB$_2$O$_4$, by means of inelastic neutron scattering in the commensurate
magnetic phase. We have found two branches of spin-wave excitations associated
with the two magnetic sublattices Cu(A) and Cu(B), respectively. In the
temperature regime $10K \le ... | 0203369v1 |
2005-06-14 | Spin-wave softening and Hund's coupling in ferromagnetic manganites | Using one-orbital model of hole-doped manganites, we show with the help of
Holstein-Primakov transformation that finite Hund's coupling is responsible for
the spin-wave softening in the ferromagnetic $B$-phase manganites. We obtain an
analytical result for the spin-wave spectrum for $\JH\gg t$. In the limit of
infinte ... | 0506321v1 |
2005-08-25 | Interactions of spin waves with a magnetic vortex | We have investigated azimuthal spin-wave modes in magnetic vortex structures
using time-resolved Kerr microscopy. Spatially resolved phase and amplitude
spectra of ferromagnetic disks with diameters from 5 $\mu$m down to 500 nm
reveal that the lowest order azimuthal spin wave mode splits into a doublet as
the disk size... | 0508597v1 |
2006-04-13 | Spin-wave instability for parallel pumping in ferromagnetic thin films under oblique field | Spin-wave instability for parallel pumping is studied theoretically. The
spin-wave instability threshold is calculated in ferromagnetic thin films under
oblique field which has an oblique angle to the film plane. The butterfly curve
of the threshold usually has a cusp at a certain value of the static external
field. Wh... | 0604329v1 |
2007-01-19 | Excited states of quantum many-body interacting systems: A variational coupled-cluster description | We extend recently proposed variational coupled-cluster method to describe
excitation states of quantum many-body interacting systems. We discuss, in
general terms, both quasiparticle excitations and quasiparticle-density-wave
excitations (collective modes). In application to quantum antiferromagnets, we
reproduce the ... | 0701482v1 |
2007-11-29 | Realization of XNOR and NAND spin-wave logic gates | We demonstrate the functionality of spin-wave logic XNOR and NAND gates based
on a Mach-Zehnder type interferometer which has arms implemented as sections of
ferrite film spin-wave waveguides. Logical input signals are applied to the
gates by varying either the phase or the amplitude of the spin waves in the
interferom... | 0711.4720v1 |
2008-01-19 | Electrical control of magnon propagation in multiferroic BiFeO3 films | The spin wave spectra of multiferroic BiFeO3 films is calculated using a
phenomenological Landau theory that includes magnetostatic effects. The lowest
frequency magnon dispersion is shown to be quite sensitive to the angle between
spin wave propagation vector and the Neel moment. Since electrical switching of
the Neel... | 0801.3012v1 |
2008-03-26 | Unusual spin-wave population in nickel after femtosecond laser pulse excitation | The spin-wave relaxation mechanisms after intense laser excitation in
ferromagnetic nickel films are investigated with all-optical pump-probe
experiments. Uniform precession (Kittel mode), Damon-Eshbach surface modes and
perpendicular standing spin waves can be identified by their dispersion f(H).
However, different to... | 0803.3686v2 |
2009-01-14 | Interface coupling properties and reflection of bulk spin waves from biaxial multilayer ferromagnetic media | The reflection coefficient of bulk spin waves from multilayer ferromagnetic
structure with periodically modulated parameters of exchange interaction,
uniaxial and rhombic magnetic anisotropy and saturation magnetization is
calculated with a non-ideal coupling between layers. The strong dependence of
spin-wave reflectio... | 0901.2012v1 |
2011-03-06 | Spin-wave energy dispersion of a frustrated spin-1/2 Heisenberg antiferromagnet on a stacked square lattice | Effects of interlayer coupling and spatial anisotropy on spin-wave excitation
spectra of a three-dimensional spatially anisotropic, frustrated spin-$\half$
Heisenberg antiferromagnet (HAFM) is investigated for the two ordered phases
using second-order spin-wave expansion. We show that the second-order
corrections to th... | 1103.1155v1 |
2011-03-29 | Spin waves in the block checkerboard antiferromagnetic phase | Motivated by the discovery of new family 122 iron-based superconductors, we
present the theoretical results on the ground state phase diagram, spin wave
and dynamic structure factor of the extended $J_{1}-J_{2}$ Heisenberg model. In
the reasonable physical parameter region of $K_{2}Fe_{4}Se_{5}$, we fi{}nd the
block ch... | 1103.5521v1 |
2011-11-16 | Spatial distribution of spin-wave modes in cylindrical nanowires of finite aspect ratio | The spin wave modes of cylindrical nanowires of moderate diameter-to-length
ratio are investigated in this article. Based on three dimensional simulations
and analytical calculations we determine the spatial structure of the modes. We
show that standing spin waves and localized edge modes form the discrete
spectrum of ... | 1111.3838v1 |
2012-04-20 | Spin Versus Charge Density Wave Order in Graphene-like Systems | A variational technique is used to study sublattice symmetry breaking by
strong on-site and nearest neighbor interactions in graphene. When interactions
are strong enough to break sublattice symmetry, and with relative strengths
characteristic of graphene, a charge density wave Mott insulator is favored
over the spin d... | 1204.4531v2 |
2012-05-21 | Emergence of spatial spin-wave correlations in a cold atomic gas | Rydberg spin waves are optically excited in a quasi-one-dimensional atomic
sample of Rb atoms. Pair-wise spin-wave correlations are observed by a
spatially selective transfer of the quantum state onto a light field and
photoelectric correlation measurements of the light. The correlations are
interpreted in terms of the... | 1205.4708v2 |
2012-08-09 | Spin waves interference from rising and falling edges of electrical pulses | The authors have investigated the effect of the electrical pulse width of
input excitations on the generated spin waves in a NiFe strip using pulse
inductive time domain measurements. The authors have shown that the spin waves
resulting from the rising- and the falling-edges of input excitation pulses
interfere either ... | 1208.1836v1 |
2014-04-29 | On conformal higher spin wave operators | We analyze free conformal higher spin actions and the corresponding wave
operators in arbitrary even dimensions and backgrounds. We show that the wave
operators do not factorize in general, and identify the Weyl tensor and its
derivatives as the obstruction to factorization. We give a manifestly
factorized form for the... | 1404.7452v2 |
2014-10-13 | Vortex gyration mediated by spin waves driven by an out-of-plane oscillating magnetic field | In this letter we address the vortex core dynamics involved in gyration
excitation and damping change by out-of-plane oscillating magnetic fields. When
the vortex core is at rest under the effect of in-plane bias magnetic fields,
the spin waves excited by the perpendicular magnetic field can induce obvious
vortex gyrat... | 1410.3230v1 |
2017-05-03 | Controlling Chiral Domain Walls in Antiferromagnets Using Spin-Wave Helicity | In antiferromagnets, the Dzyaloshinskii-Moriya interaction lifts the
degeneracy of left- and right-circularly polarized spin waves. This
relativistic coupling increases the efficiency of spin-wave-induced domain wall
motion and leads to higher drift velocities. We show that in biaxial
antiferromagnets, the spin-wave he... | 1705.01572v2 |
2003-12-31 | Excitation of Spin Waves in Superconducting Ferromagnets | This Letter presents a theoretical analysis of propagation of spin waves in a
superconducting ferromagnet. The surface impedance was calculated for the case
when the magnetization is normal to the sample surface. We found the
frequencies at which the impedance and the power absorption have singularities
related to the ... | 0312720v1 |
2017-03-09 | Spin-wave excitations in the SDW state of iron pnictides: a comparison between the roles of interaction parameters | We investigate the role of Hund's coupling in the spin-wave excitations of
the ($\pi, 0$) ordered magnetic state within a five-orbital tight-binding model
for iron pnictides. To differentiate between the roles of intraorbital Coulomb
interaction and Hund's coupling, we focus on the self-consistently obtained
mean-field... | 1703.03228v2 |
2020-05-06 | Angular momentum conservation in counter-propagating vectorially structured light | It is well-known that electric spin angular momentum and electric orbital
angular momentum are conserved under paraxial propagation of travelling waves
in free-space. Here we study the electric and magnetic angular momentum in
counter-propagating waves and show both theoretically and experimentally that
neither compone... | 2005.02739v1 |
2020-12-23 | Analytic description of spin waves in dipolar/octupolar pyrochlore magnets | We derive analytic forms for spin waves in pyrochlore magnets with
dipolar-octupolar interactions, such as ${\rm Nd}_2{\rm Zr}_2{\rm O}_7$. We
obtain full knowledge of the diagonalized magnonic Hamiltonian within the
linear spin wave approximation. We also consider the effect of a "breathing
mode" as a perturbation of ... | 2012.12500v1 |
2021-03-05 | Universal spin wave damping in magnetic Weyl semimetals | We analyze the decay of spin waves into Stoner excitations in magnetic Weyl
semimetals. The lifetime of a mode is found to have a universal dependence on
its frequency and momentum, and on a few parameters that characterize the
relativistic Weyl spectrum. At the same time, Gilbert damping by Weyl electrons
is absent. T... | 2103.03885v1 |
2021-12-29 | Spin Wave Propagation through Antiferromagnet/Ferromagnet Interface | We study the problem of controlling spin waves propagation through an
antiferromagnet/ferromagnet interface via tuning material parameters. It is
done by introducing the degree of sublattice noncompensation of antiferromagnet
(DSNA), which is a physical characteristic of finite-thickness interfaces. The
DSNA value can ... | 2112.14583v1 |
2022-03-17 | Electron Wave Spin in a Quantum Well | The particle-wave duality of the electron poses a principle question of
whether the spin is a property of the particle or the wave. In this paper, the
wave nature of the spin is studied for an electron inside a two-dimensional
quantum well. By solving the exact $4-$spinor eigen solution to the Dirac
equation, we show t... | 2203.09437v2 |
2004-06-02 | Observation of single defect relaxation in a freely suspended nano resonator | Relaxation of single defects in a nanometer sized resonator is observed by
coupling surface acoustic waves to a freely suspended beam. The surface waves
act on the resonator as driving forces being able to modify the internal
friction in the beam. In analogy to classical experiments on internal friction
in macroscopic ... | 0406056v1 |
1999-09-23 | Partial Wave Analysis of $J/ψ\toγ(π^+π^-π^+π^-)$ | BES data on $J/\psi \to \gamma (\pi^{+} \pi^{-} \pi^{+} \pi^{-})$ have been
analyzed into partial waves. We fit with resonances having $J^{PC}=2^{++}$ at
1275 MeV, $0^{++}$ at 1500 MeV, $2^{++}$ at 1565 MeV, $0^{++}$ at 1740 MeV,
$2^{++}$ at 1940 MeV and $0^{++}$ at 2104 MeV, plus a broad $0^-$ component.
The $0^{++}$ ... | 9909040v2 |
2007-01-31 | Exact and quasi-resonances in discrete water-wave turbulence | The structure of discrete resonances in water-wave turbulence is studied. It
is shown that the number of exact 4-wave resonances is huge (hundreds million)
even in comparatively small spectral domain when both scale and angle energy
transport is taken into account. It is also shown that angle transport can
contribute i... | 0701077v3 |
1999-01-01 | Quantum slow motion | We simulate the center of mass motion of cold atoms in a standing, amplitude
modulated, laser field as an example of a system that has a classical mixed
phase-space. We show a simple model to explain the momentum distribution of the
atoms taken after any distinct number of modulation cycles. The peaks
corresponding to ... | 9901001v1 |
2008-02-18 | Resonance sum rules from large $N_C$ and partial wave dispersive analysis | Combining large $N_C$ techniques and partial wave dispersion theory to
analyze the $\pi\pi$ scattering, without relying on any explicit resonance
lagrangian, some interesting results are derived: (a) a general KSRF relation
including the scalar meson contribution; (b) a new relation between resonance
couplings, with wh... | 0802.2530v1 |
2009-12-14 | Magnetic Faraday rotation in lossy photonic structures | Magnetic Faraday rotation is widely used in optics and MW. In uniform
magneto-optical materials, this effect is very weak. One way to enhance it is
to incorporate the magnetic material into a high-Q optical resonator. One
problem with magneto-optical resonators is that along with Faraday rotation,
the absorption and li... | 0912.2612v1 |
2010-10-28 | Gas lasers with wave-chaotic resonators | Semiclassical multimode laser theory is extended to gas lasers with open
two-dimensional resonators of arbitrary shape. The Doppler frequency shift of
the linear-gain coefficient leads to an additional linear coupling between the
modes, which, however, is shown to be negligible. The nonlinear laser equations
simplify i... | 1010.5985v1 |
2011-06-08 | Surface Acoustic Wave Frequency Comb | We report on realization of an efficient triply-resonant coupling between two
long lived optical modes and a high frequency surface acoustic wave (SAW) mode
of the same monolithic crystalline whispering gallery mode resonator. The
coupling results in an opto-mechanical oscillation and generation of a
monochromatic SAW.... | 1106.1477v1 |
2012-05-31 | Variation of Longitudinal Plasma Wavelength under Irradiation and Double Resonance in Coupled Josephson Junctions | The effect of electromagnetic wave irradiation on the phase dynamics of
intrinsic Josephson junctions in high temperature superconductors is
investigated. We predict three novel effects by variation of the radiation
amplitude and frequency: changing of the longitudinal plasma wavelength at
parametric resonance; double ... | 1205.6923v1 |
2014-12-07 | Experimental Demonstration of Non-Resonant Hyperlens in the Visible Range | A metamaterial hyperlens offers a unique solution to overcome the diffraction
limit by transforming evanescent waves responsible for imaging subwavelength
features of an object into propagating waves. However, the first realizations
of optical hyperlenses were limited by a narrow working bandwidth and
significant reson... | 1412.2361v1 |
2018-09-14 | Four-wave mixing in a silicon microring resonator using a self-pumping geometry | We report on four-wave mixing in a silicon microring resonator using a
self-pumping scheme instead of an external laser. The ring resonator is
inserted in an external-loop cavity with a fibered semiconductor amplifier as a
source of gain. The silicon microring acts as a filter and we observe lasing in
one of the micror... | 1809.05323v1 |
2018-09-27 | Identifying resonances with wave-packet dynamics | A new method for the study of resonant behavior - using wave-packet dynamics
- is presented, based on the powerful window operator technique. The method is
illustrated and quantified by application to the astrophysically-important
example of low-energy $^{12}$C + $^{12}$C collisions. For this selected,
potential model ... | 1809.10517v2 |
2019-05-12 | Stereodynamical control of a quantum scattering resonance in cold molecular collisions | Cold collisions of light molecules are often dominated by a single partial
wave resonance. For the rotational quenching of HD(v=1,j=2) by collisions with
ground state para-H2, the process is dominated by a single L=2 partial wave
resonance centered around 0.1 K. Here, we show that this resonance can be
switched on or o... | 1905.04765v1 |
2017-03-28 | Resonance State Wave Functions of $^{15}$Be using Supersymmetric Quantum Mechanics | The theoretical procedure of supersymmetric quantum mechanics is adopted to
generate the resonance state wave functions of the unbound nucleus $^{15}$Be.
In this framework, we used a density dependent M3Y microscopic potential and
arrived at the energy and width of the 1.8 MeV (5/2$^+$) resonance state. We
did not find... | 1703.09448v2 |
2019-12-04 | Explicit form of the effective evolution equation for the randomly forced Schrödinger equation with quadratic nonlinearity | An effective equation describes a weakly nonlinear wave field evolution
governed by nonlinear dispersive PDEs \emph{via} the set of its resonances in
an arbitrary big but finite domain in the Fourier space. We consider the
Schr\"{o}dinger equation with quadratic nonlinearity including small external
random forcing/diss... | 1912.02289v1 |
2024-01-17 | A Distributed Magnetostatic Resonator | This work reports the design, fabrication, and characterization of
coupling-enhanced magnetostatic forward volume wave resonators with significant
spur suppression. The fabrication is based on surface micro-machining of
yttrium iron garnet (YIG) film on a gadolinium gallium garnet (GGG) substrate
with thick gold transd... | 2401.08911v1 |
2001-04-28 | Origin of enhanced dynamic nuclear polarization and all-optical nuclear magnetic resonance in GaAs quantum wells | Time-resolved optical measurements of electron-spin dynamics in a (110) GaAs
quantum well are used to study the consequences of a strongly anisotropic
electron g-tensor, and the origin of previously discovered all-optical nuclear
magnetic resonance. All components of the g-tensor are measured, and a strong
anisotropy e... | 0104564v1 |
2006-11-08 | Control of electron spin and orbital resonance in quantum dots through spin-orbit interactions | Influence of resonant oscillating electromagnetic field on a single electron
in coupled lateral quantum dots in the presence of phonon-induced relaxation
and decoherence is investigated. Using symmetry arguments it is shown that spin
and orbital resonance can be efficiently controlled by spin-orbit interactions.
The co... | 0611228v2 |
2007-04-12 | Detection of single electron spin resonance in a double quantum dot | Spin-dependent transport measurements through a double quantum dot are a
valuable tool for detecting both the coherent evolution of the spin state of a
single electron as well as the hybridization of two-electron spin states. In
this paper, we discuss a model that describes the transport cycle in this
regime, including... | 0704.1628v1 |
2007-07-24 | Reversal of spin polarization in Fe/GaAs (001) driven by resonant surface states: First-principles calculations | A minority-spin resonant state at the Fe/GaAs(001) interface is predicted to
reverse the spin polarization with voltage bias of electrons transmitted across
this interface. Using a Green's function approach within the local spin density
approximation we calculate spin-dependent current in a Fe/GaAs/Cu tunnel
junction a... | 0707.3644v1 |
2011-10-24 | Readout of carbon nanotube vibrations based on spin-phonon coupling | We propose a scheme for spin-based detection of the bending motion in
suspended carbon-nanotubes, using the curvature-induced spin-orbit interaction.
We show that the resulting effective spin-phonon coupling can be used to
down-convert the high-frequency vibration-modulated spin-orbit field to
spin-flip processes at a ... | 1110.5165v1 |
2012-12-03 | Observation of Resistively Detected Hole Spin Resonance and Zero-field Pseudo-spin Splitting in Epitaxial Graphene | Electronic carriers in graphene show a high carrier mobility at room
temperature. Thus, this system is widely viewed as a potential future
charge-based high-speed electronic-material to complement- or replace- silicon.
At the same time, the spin properties of graphene have suggested improved
capability for spin-based e... | 1212.0329v1 |
2014-05-06 | Mechanically induced spin resonance in a carbon nanotube | The electron spin is a promising qubit candidate for quantum computation and
quantum information. Here we propose and analyze a mechanically-induced single
electron spin resonance, which amounts to a rotation of the spin about the
$x$-axis in a suspended carbon nanotube. The effect is based on the coupling
between the ... | 1405.1347v1 |
2015-11-04 | Enhanced strain coupling of nitrogen vacancy spins to nanoscale diamond cantilevers | Nitrogen vacancy (NV) centers can couple to confined phonons in diamond
mechanical resonators via the effect of lattice strain on their energy levels.
Access to the strong spin-phonon coupling regime with this system requires
resonators with nanoscale dimensions in order to overcome the weak strain
response of the NV g... | 1511.01548v1 |
2016-01-20 | Electron Paramagnetic Resonance of Single Magnetic Moment on a Surface | We address electron spin resonance of single magnetic moments in a tunnel
junction using time-dependent electric fields and spin-polarized current. We
show that the tunneling current directly depends on the local magnetic moment
and that the frequency of the external electric field mixes with the
characteristic Larmor ... | 1601.05195v2 |
2016-07-15 | Theory of spin-coherent transport through a defect spin state in a metal/ferromagnet tunnel junction during ferromagnetic resonance | We describe the coherent interaction between a defect spin at the interface
of a ferromagnet and a non-magnetic material, under bias and when the
magnetization of the ferromagnetic contact precesses during ferromagnetic
resonance. The magnet filters charge carriers by preferentially allowing in
parallel spins, which le... | 1607.04535v2 |
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