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相关论文: Spin-Orbit Interaction Effects in the Electronic S…

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Effect of spin-orbit scattering on quantum diffusive transport of two-dimensional massive Dirac fermions is studied by the diagrammatic technique. The quantum diffusion of massive Dirac fermions can be viewed as a singlet Cooperon in the…

介观与纳米尺度物理 · 物理学 2012-09-07 Wen-Yu Shan , Hai-Zhou Lu , Shun-Qing Shen

We numerically study imbalanced two component Fermi gases with attractive interactions in highly elongated harmonic traps. An accurate parametrization formula for the ground state energy is presented for a spin-polarized attractive…

强关联电子 · 物理学 2008-03-20 Gao Xianlong , Reza Asgari

We study the effect of spin-orbit interaction and in-plane effective magnetic field on the conductance of a quasi-one-dimensional ballistic electron system. The effective magnetic field includes the externally applied field, as well as the…

介观与纳米尺度物理 · 物理学 2010-10-12 Yuriy V. Pershin , James A. Nesteroff , Vladimir Privman

We calculate the dynamic structure factor S (omega, q) of spinless fermions in one dimension with quadratic energy dispersion k^2/2m and long range density-density interaction whose Fourier transform f_q is dominated by small…

强关联电子 · 物理学 2008-08-15 Peyman Pirooznia , Florian Schuetz , Peter Kopietz

We report the optical conductivity in high-quality crystals of the chiral topological semimetal CoSi, which hosts exotic quasiparticles known as multifold fermions. We find that the optical response is separated into several distinct…

We consider chiral fluids, with (nearly) massless fermionic constituents, in the confining phase. Chiral vortical effect (CVE) is the flow of axial current along the axis of rotation of the fluid while the spin alignment is a non-vanishing…

高能物理 - 理论 · 物理学 2017-05-05 Oleg V. Teryaev , Valentin I. Zakharov

A chiral compound FeSi is a nonmagnetic narrow-gap insulator, exhibiting peculiar charge and spin dynamics beyond a simple band-structure picture. Those unusual features have been attracting renewed attention from topological aspects.…

Magnetic state of exchanged biased CoO(20nm)/Co($d_F$) bilayer ($d_F$=5-20nm) was studied by means of polarized neutron reflectometry. By spacing of CoO/Co bilayer and Al$_2$O$_3$ substrate with Nb(20nm) layer we created waveguide structure…

强关联电子 · 物理学 2021-12-07 Yu. Khaydukov , D. Lenk , V. Zdravkov , R. Morari , T. Keller , A. S. Sidorenko , L. R. Tagirov , R. Tidecks , S. Horn , B. Keimer

We have performed a systematic calculation for the non-Markovian dynamics of a localized electron spin interacting with an environment of nuclear spins via the Fermi contact hyperfine interaction. This work applies to an electron in the s…

介观与纳米尺度物理 · 物理学 2007-05-23 W. A. Coish , Daniel Loss

We analyze the spectrum of electron density oscillations in an interacting one-dimensional electron system with an impurity. The system's inhomogeneity is characterized by different values of Fermi wave vectors $k_F=k_{L/R}$ on left/right…

介观与纳米尺度物理 · 物理学 2008-05-19 D. F. Urban , A. Komnik

We present an in-depth study of the spin-orbit (SO) interactions occurring in inversion-asymmetric two-dimensional hole gases at semiconductor heterointerfaces. We focus on common semiconductors such as GaAs, InAs, InSb, Ge, and Si. We…

介观与纳米尺度物理 · 物理学 2017-02-21 E. Marcellina , A. R. Hamilton , R. Winkler , Dimitrie Culcer

Most recent observation of topological Fermi arcs on the surface of manyfold degenerate B20 systems, CoSi and RhSi, have attracted enormous research interests. Although an another isostructural system, FeSi, has been predicted to show bulk…

The discovery of a chiral anomaly in Weyl semimetals, the non-conservation of chiral charge and energy across two opposite chirality Weyl nodes, has sparked immense interest in understanding its impact on various physical phenomena. Here,…

介观与纳米尺度物理 · 物理学 2023-07-19 Sunit Das , Kamal Das , Amit Agarwal

We investigate the temperature dependence of the shear viscosity and spin diffusion in a two-dimensional Fermi gas with contact interactions, as realized in ultra-cold atomic gases. We describe the transport coefficients in terms of a…

量子气体 · 物理学 2012-07-16 Tilman Enss , Carolin Küppersbusch , Lars Fritz

The spin Hall effect of light attracted enormous attention in the literature due to the ongoing progress in developing of new optically active materials and metamaterials with non-trivial spin-orbit interaction. Recently, it was shown that…

高能物理 - 理论 · 物理学 2019-04-01 Xu-Guang Huang , Andrey V. Sadofyev

Interest in the bulk transition metal dichalcogenides for their electronic, photovoltaic, and optical properties has grown and led to their use in many technological applications. We present a systematic investigation of their interlinked…

Chiral multifold fermions are quasi-particles that appear only in chiral crystals such as transition metal silicides in the cubic B20 structure (i.e., the CoSi family), and they may show exotic physical properties. Here we study the…

介观与纳米尺度物理 · 物理学 2023-05-04 Hsiu-Chuan Hsu , Jhih-Shih You , Junyeong Ahn , Guang-Yu Guo

Spin Hall effect at finite wave vector in a ferromagnetic conductor is theoretically studied by calculating the spin density as the linear response to an applied electric field. The cases of a spin-orbit interaction due to random impurities…

介观与纳米尺度物理 · 物理学 2022-02-17 Gen Tatara

By means of Shubnikov-de-Haas and de-Haas-van-Alphen oscillations, and ab initio calculations, we have studied the Fermi surface of high-quality BaNiS$_2$ single crystals, with mean free path $l \sim 400 ~\text{\AA}$. The angle and…

We study the zero-temperature phase diagram of the 2D spin-imbalanced Fermi gas with short-ranged attractive interactions using the recently developed neural network variational Monte Carlo method with the AGPs FermiNet Ansatz. The…