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Related papers: Electron spin diffusion in monolayer MoS$_2$

200 papers

We provide a microscopic theory for the Doppler velocimetry of spin propagation in the presence of spatial inhomogeneity, driving electric field and the spin orbit coupling in semiconductor quantum wells in a wide range of temperature…

Mesoscale and Nanoscale Physics · Physics 2012-11-12 M. Q. Weng , M. W. Wu

The evolution of the electron spin dynamics as consequence of carrier delocalization in $n$-type GaAs is investigated by the recently developed extended pump-probe Kerr/Faraday rotation spectroscopy. We find that isolated electrons…

Mesoscale and Nanoscale Physics · Physics 2017-12-11 V. V. Belykh , K. V. Kavokin , D. R. Yakovlev , M. Bayer

Disorder in spin-orbit (SO) coupling is an important feature of real low-dimensional electron structures. We study spin relaxation due to such a disorder as well as resulting abilities of spin manipulation. The spin relaxation reveals…

Mesoscale and Nanoscale Physics · Physics 2009-09-03 V. K. Dugaev , E. Ya. Sherman , V. I. Ivanov , J. Barnas

Based on the semiclassical model Hamiltonian of the surface plasmon polariton and the nonequilibrium Green-function approach, we present a microscopic kinetic theory to study the influence of the electron scattering on the dynamics of the…

Mesoscale and Nanoscale Physics · Physics 2013-04-11 Y. Yin , M. W. Wu

The Zeeman-split spin-states of a single electron confined in a self-assembled quantum dot provide an optically-accessible spin qubit. For III-V materials the nuclear spins of the solid-state host provide an intrinsic noise source,…

Quantum Physics · Physics 2015-12-14 R. Stockill , C. Le Gall , C. Matthiesen , L. Huthmacher , E. Clarke , Maxime Hugues , M. Atature

Spin kinetics in $n$-type InAs quantum wells under intense terahertz laser fields is investigated by developing fully microscopic kinetic spin Bloch equations via the Floquet-Markov theory and the nonequilibrium Green's function approach,…

Materials Science · Physics 2008-09-08 J. H. Jiang , M. W. Wu , Y. Zhou

We address the ballistic transmission of charge carriers across ordered line defects in monolayer transition metal dichalcogenides. Our study reveals the presence of a transport gap driven by spin-orbit interactions, spin and valley…

Mesoscale and Nanoscale Physics · Physics 2016-06-23 Artem Pulkin , Oleg V. Yazyev

We study the Hanle and spin polarization recovery effects on resident electrons in a monolayer MoSe$_2$ on EuS. We demonstrate that localized electrons provide the main contribution to the spin dynamics signal at low temperatures below 15~K…

In a pristine monolayer graphene subjected to a constant electric field along the layer, the Bloch oscillation of an electron is studied in a simple and efficient way. By using the electronic dispersion relation, the formula of a…

Mesoscale and Nanoscale Physics · Physics 2018-09-11 Tongyun Huang , Ruofan Chen , Tianxing Ma , Li-Gang Wang , Hai-Qing Lin

We study all of the leading-order contributions to spin relaxation of \textit{conduction} electrons in silicon due to the electron-phonon interaction. Using group theory, $k\cdot p$ perturbation method and rigid-ion model, we derive an…

Materials Science · Physics 2013-05-21 Yang Song , Hanan Dery

The electronic properties of a Kondo impurity are investigated in a magnetic field using linear response theory. The distribution of electrical charge and magnetic polarization are calculated in real space. The (small) magnetic field does…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Gerd Bergmann

We report on the dynamics of electron spins in n-doped CdTe layers that differs significantly from the expected response derived from the studies dedicated to electron spin relaxation in n-GaAs. At zero magnetic field, the electron spin…

Mesoscale and Nanoscale Physics · Physics 2019-10-28 Steeve Cronenberger , Chahine Abbas , Denis Scalbert , Hervé Boukari

We propose a mechanism of spin Hall effect in two-dimensional electron gas with spatially random Rashba spin-orbit interaction. The calculations based on the Kubo formalism and kinetic equation show that in contrast to the constant…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 V. K. Dugaev , M. Inglot , E. Ya. Sherman , J. Barnas

The electron spin dynamics in multilayer GaAs/AlGaAs quantum wells, containing high-mobility dense two-dimensional electron gases, have been studied using time-resolved Kerr rotation and resonant spin amplification techniques. The electron…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 S. Ullah , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

We present a theory that elucidates the major momentum and spin relaxation processes for electrons, holes and hot excitons in monolayer transition-metal dichalcogenides. We expand on spin flips induced by flexural phonons and show that the…

Mesoscale and Nanoscale Physics · Physics 2013-09-30 Yang Song , Hanan Dery

We perform a theoretical study of radiative decay of dark intravalley excitons in transition metal dichalcogenide monolayers. This decay necessarily involves an electronic spin flip. The intrinsic decay mechanism due to interband spin-flip…

Mesoscale and Nanoscale Physics · Physics 2019-03-19 A. O. Slobodeniuk , D. M. Basko

We investigate the valley depolarization dynamics and valley Hall effect of exciton due to the electron-hole exchange interaction in mono- and bilayer MoS$_2$ by solving the kinetic spin Bloch equations. The effect of the exciton energy…

Mesoscale and Nanoscale Physics · Physics 2016-01-15 T. Yu , M. W. Wu

The influence of the intrinsic spin of electrons on the propagation of circularly polarized waves in a magnetized plasma is considered. New eigenmodes are identified, one of which propagates below the electron cyclotron frequency, one above…

Plasma Physics · Physics 2015-05-19 A. P. Misra , G. Brodin , M. Marklund , P. K. Shukla

We study the microscopic mechanism controlling the interplay between local charge and local spin fluctuations in correlated electron systems via a thorough investigation of the generalized on-site charge susceptibility of several…

Strongly Correlated Electrons · Physics 2024-02-28 Severino Adler , Friedrich Krien , Patrick Chalupa-Gantner , Giorgio Sangiovanni , Alessandro Toschi

The fluid theory of plasmas is extended to include the properties of electron spin. The linear theory of waves in a magnetized plasma is presented, and it is shown that the spin effects causes a change of the magnetic permeability.…

Plasma Physics · Physics 2009-11-13 G. Brodin , M. Marklund