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相关论文: Meissner effect in the layered Kane-Mele model wit…

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We prove that the Kane-Mele-Hubbard model with purely imaginary next-nearest-neighbor hoppings has a particle-hole symmetry at half-filling. Such a symmetry has interesting consequences including the absence of charge and spin currents…

强关联电子 · 物理学 2015-03-17 Dong Zheng , Guang-Ming Zhang , Congjun Wu

We determine the phase diagram of the Kane-Mele model with a long-range Coulomb interaction using an exact quantum Monte Carlo method. Long-range interactions are expected to play a role in honeycomb materials because the vanishing density…

强关联电子 · 物理学 2014-09-01 M. Hohenadler , F. Parisen Toldin , I. F. Herbut , F. F. Assaad

We investigate the influence of different spin-orbit couplings on topological phase transitions in the bilayer Kane-Mele model. We find that the competition between intrinsic spin-orbit coupling and Rashba spin-orbit coupling can lead to…

介观与纳米尺度物理 · 物理学 2014-12-15 Hui Pan , Xin Li , Zhenhua Qiao , Cheng-Cheng Liu , Yugui Yao , Shengyuan A. Yang

The Meissner effect and the Spin Meissner effect are the spontaneous generation of charge and spin current respectively near the surface of a metal making a transition to the superconducting state. The Meissner effect is well known but, I…

超导电性 · 物理学 2013-05-23 J. E. Hirsch

We study the effective spin-orbital model for honeycomb-layered transition metal compounds, applying the second-order perturbation theory to the three-orbital Hubbard model with the anisotropic hoppings. This model is reduced to the Kitaev…

强关联电子 · 物理学 2018-04-04 Akihisa Koga , Shiryu Nakauchi , Joji Nasu

We present a quantum kinetic theory for spin-$1/2$ particles, including the spin-orbit interaction, retaining particle dispersive effects to all orders in $\hbar$, based on a gauge-invariant Wigner transformation. Compared to previous…

等离子体物理 · 物理学 2023-02-23 Robin Ekman , Haidar Al-Naseri , Jens Zamanian , Gert Brodin

We propose an all-electrical nanoscopic structure where {\em pure} spin current is induced in the transverse voltage probes attached to {\em quantum-coherent} one-dimensional ring when conventional unpolarized charge current is injected…

介观与纳米尺度物理 · 物理学 2007-05-23 Satofumi Souma , Branislav K. Nikolic

The interactions between holes in the Hubbard model, in the low density, intermediate to strong coupling limit, are investigated. Dressed spin polarons in neighboring sites have an increased kinetic energy and an enhanced hopping rate. Both…

强关联电子 · 物理学 2009-10-31 E. Louis , F. Guinea , M. P. Lopez Sancho , J. A. Verges

The effect of three-spin interaction k on thermal entanglement between alternate qubits is studied using pairwise concurrence C and energy level diagram. It is found that k breaks the symmetry about the effect of magnetic field h on C. It…

量子物理 · 物理学 2017-10-03 Jing-Heng Fu , Guo-Feng Zhang

The quantum spin Hall effect has been predicted theoretically and observed experimentally in InAs/GaSb quantum wells as a result of inverted band structures, for which electron bands in InAs layers are below heavy hole bands in GaSb layers…

介观与纳米尺度物理 · 物理学 2016-08-03 Lun-Hui Hu , Chao-Xing Liu , Dong-Hui Xu , Fu-Chun Zhang , Yi Zhou

We quantify the effect of the spin-orbit interaction on the Rydberg-like series of image state electrons at the (111) and (001) surface of Ir, Pt and Au. Using relativistic multiple-scattering methods we find Rashba-like dispersions with…

材料科学 · 物理学 2007-05-23 J R McLaughlan , E M Llewellyn-Samuel , S Crampin

In this work, we investigate the possible dramatic effects of Rashba or Dresselhaus spin-orbit coupling (SOC) on fermionic Hubbard model in a 2d square lattice. In the strong coupling limit, it leads to the Rotated Anti-ferromagnetic…

强关联电子 · 物理学 2017-08-30 Fadi Sun , Jinwu Ye , Wu-Ming Liu

By analyzing the spin-group symmetry of magnons, we establish two generalized Onsager's relations in the magnon thermal Hall effect, which reveals the rich and complicated structures of the magnon Berry curvature in the parameter space of…

介观与纳米尺度物理 · 物理学 2026-03-04 Jikun Zhou , Yang Gao , Qian Niu

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

In this article, the modified Kane-Mele Hamiltonian is derived for graphene with wedge disclination and spin orbit couplings (intrinsic and Rashba). The wedge disclination changes the flat lattice into the conical lattice and hence modifies…

介观与纳米尺度物理 · 物理学 2015-01-21 Tarun Choudhari , Nivedita Deo

In a two-dimensional ferromagnetic metal layer lacking inversion symmetry, the itinerant electrons mediate the interaction between the Rashba spin-orbit interaction and the ferromagnetic order parameter, leading to a Rashba spin torque…

材料科学 · 物理学 2011-11-24 Xuhui Wang , Aurelien Manchon

We study the $S_z$-conserving quantum spin Hall insulator in the presence of Hubbard $U$ from a field theory point view. The main findings are the following. (1) For arbitrarily small U the edges possess power-law correlated…

强关联电子 · 物理学 2013-05-29 Dung-Hai Lee

The Kane-Mele model has been modified to achieve versatile topological phases. Previous work [Phys. Rev. Lett. 120, 156402 (2018)] introduced a staggered intrinsic spin-orbit coupling effect to generate pseudohelical edge states, with…

介观与纳米尺度物理 · 物理学 2024-11-14 Xiaokang Dai , Pei-Hao Fu , Yee Sin Ang , Qinjun Chen

The Rashba spin-orbit coupling arising from structure inversion asymmetry couples spin and momentum degrees of freedom providing a suitable (and very intensively investigated) environment for spintronic effects and devices. Here we show…

介观与纳米尺度物理 · 物理学 2015-10-28 Goetz Seibold , Sergio Caprara , Marco Grilli , Roberto Raimondi

We present results on the effects of spin-orbit coupling on the electronic structure of few-electron interacting quantum dots. The ground-state properties as a function of the number of electrons in the dot $N$ are calculated by means of…

介观与纳米尺度物理 · 物理学 2009-11-07 M. Governale