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相关论文: Nanospintronics meets relativistic quantum physics…

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Recent ultracold atomic gas experiments implementing synthetic spin-orbit coupling allow access to flatbands that emphasize interactions. We model spin-orbit coupled fermions in a one-dimensional flatband optical lattice. We introduce an…

量子气体 · 物理学 2014-06-10 Fei Lin , Chuanwei Zhang , V. W. Scarola

Closed nonrelativistic (nonretarded) theory of conservative and dissipative electromagnetic forces and heat exchange between moving particles (nanoprobes) and a surface (flat and cylindrical) is reviewed. The formalism is based on methods…

介观与纳米尺度物理 · 物理学 2011-03-29 G. V. Dedkov , A. A. Kyasov

Inversion symmetry in bilayer graphene allows for layered opposite Rashba spin-orbit coupling (LO-RSOC) -- the situation when the RSOC has the same magnitude but the opposite sign in two coupled spatially separated layers. We show that the…

介观与纳米尺度物理 · 物理学 2022-05-27 Xuechao Zhai

We show that a moderately strong constant electric field in the plane of a monolayer graphene sheet can create particle-hole pairs at an observable rate. The pairs undergo zitterbewegung in opposite directions leading to a Hall-like…

介观与纳米尺度物理 · 物理学 2008-06-03 J. C. Martinez , M. B. A. Jalil , S. G. Tan

We address two fundamental issues in the physics of the quantum Hall effect: a unified description of scaling behavior of conductances in the integral and fractional regimes, and a quasi-particle formulation of the chiral Luttinger Liquids…

介观与纳米尺度物理 · 物理学 2015-06-25 A. M. M. Pruisken , K. Schoutens

We consider a spin-orbit coupled system of particles in an external trap that is represented by a deformed harmonic oscillator potential. The spin-orbit interaction is a Rashba interaction that does not commute with the trapping potential…

量子气体 · 物理学 2013-06-25 O. V. Marchukov , A. G. Volosniev , D. V. Fedorov , A. S. Jensen , N. T. Zinner

We consider a quantum graph consisting of a ring with Rashba hamiltonian and an arbitrary number of semi-infinite wires attached. We describe the scattering matrix for this system and investigate spin filtering for a three terminal device.

数学物理 · 物理学 2007-05-23 M. Harmer

Dynamics of non-interacting ultracold atoms with artificial spin-orbit coupling is considered. Spin-orbit coupling is created using two moving optical lattices with orthogonal polarizations. Our main goal is to study influence of lattice…

量子气体 · 物理学 2016-09-21 V. Yu. Argonov , D. V. Makarov

A microscopic approach is developed to scattering of surface states from a non-magnetic linear defect at a surface with strong spin-orbit interaction. Spin-selective reflection resonances in scattering of Rashba-split surface states by an…

介观与纳米尺度物理 · 物理学 2018-01-24 I. A. Nechaev , E. E. Krasovskii

The interplay of spin-orbit-coupling and strong electronic correlations is studied for the single-layer and the bilayer compound of the strontium ruthenate Ruddlesden-Popper series by a combination of first-principles band-structure theory…

强关联电子 · 物理学 2012-08-08 Malte Behrmann , Christoph Piefke , Frank Lechermann

Theory predicts for the two-dimensional electrons gas with only Rashba spin-orbit interaction a vanishing spin Hall conductivity and at the same time a finite inverse spin Hall effect. We show how these seemingly contradictory results are…

介观与纳米尺度物理 · 物理学 2015-06-05 C. Gorini , R. Raimondi , P. Schwab

We formulate a generalized scattering field theory a la Buttiker describing particles transport in magnetic/superconducting heterostructures. The proposed formalism, characterized by a four- component spinorial wavefunction of the…

介观与纳米尺度物理 · 物理学 2011-08-02 F. Romeo , R. Citro

Strong interest has arisen recently on low-dimensional systems with strong spin-orbit interaction due to their peculiar properties of interest for some spintronic applications. Here, the time evolution of the electron spin polarization of a…

介观与纳米尺度物理 · 物理学 2009-11-11 C. Grimaldi

We uncover a remarkable quantum scattering phenomenon in two-dimensional Dirac material systems where the manifestations of both classically integrable and chaotic dynamics emerge simultaneously and are electrically controllable. The…

量子物理 · 物理学 2018-03-28 Hong-Ya Xu , Guang-Lei Wang , Liang Huang , Ying-Cheng Lai

A nanodevice capable of separating spins of two electrons confined in a quantum dot formed in a gated semiconductor nanowire is proposed. Two electrons confined initially in a single quantum dot in the singlet state are transformed into the…

介观与纳米尺度物理 · 物理学 2014-02-25 J. Pawłowski , P. Szumniak , A. Skubis , S. Bednarek

The Wigner-crystal phase of two-dimensional electrons interacting via the Coulomb repulsion and subject to a strong Rashba spin-orbit coupling is investigated. For low enough electronic densities the spin-orbit band splitting can be larger…

介观与纳米尺度物理 · 物理学 2014-08-12 P. G. Silvestrov , O. Entin-Wohlman

We investigate the possibility of electromagnetic fields leaving imprints on gravitational wave (GW) signals from Neutron Star-Black hole (NSBH) mergers, specifically in the context of extreme mass ratio inspirals (EMRIs). Using black hole…

广义相对论与量子宇宙学 · 物理学 2024-11-06 Fawzi Aly , Mahmoud A. Mansour , Dejan Stojkovic

Strong spin-orbit coupling in noncentrosymmetric materials and interfaces results in remarkable physical phenomena, such as nontrivial spin textures, which may exhibit Rashba, Dresselhaus, and other intricated configurations. This provides…

介观与纳米尺度物理 · 物理学 2021-11-15 Thorsten Aull , Igor V. Maznichenko , Sergey Ostanin , Ersoy Şaşıoğlu , Ingrid Mertig

Charged plasma particles form an anisotropic counter-streaming distribution at the front of a shock. In the near- and ultra-relativistic regimes, Weibel (or two-stream) instability produces near-equipartition, chaotic, small-scale magnetic…

天体物理学 · 物理学 2007-05-23 Mikhail V. Medvedev , Luis O. Silva , Ricardo A. Fonseca , J. W. Tonge , Warren B. Mori

We present a systematic study of spin and lattice dynamics in the quasi-one-dimensional spiral magnet CuBr2, using Raman scattering in conjunction with infrared and neutron spectroscopy. Along with the development of spin correlations upon…

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