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相关论文: Model spin-orbit coupling Hamiltonians for graphen…

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Spin-orbit coupling (SOC) is a fundamental interaction in solids which can induce a broad spectrum of unusual physical properties from topologically non-trivial insulating states to unconventional pairing in superconductors. In iron-based…

We study theoretically the quantum transport properties of the Dirac fermions with spin-orbit interactions (SOIs) in graphene by using the method of Schwinger proper time together with decomposition over Landau level poles and Kubo formula.…

介观与纳米尺度物理 · 物理学 2008-08-09 Kai-He Ding , Guanghui Zhou , Zhen-Gang Zhu

One of the main characteristics of the new family of two-dimensional crystals of semiconducting transition metal dichalcogenides (TMD) is the strong spin-orbit interaction, which makes them very promising for future applications in…

介观与纳米尺度物理 · 物理学 2015-11-11 R. Roldán , M. P. López-Sancho , E. Cappelluti , J. A. Silva-Guillén , P. Ordejón , F. Guinea

Cold atoms tailored by an optical lattice have become a fascinating arena for simulating quantum physics. In this area, one important and challenging problem is creating effective spin-orbit coupling (SOC), especially for fashioning a cold…

介观与纳米尺度物理 · 物理学 2018-11-09 Chao-Kai Li , Qian Niu , Ji Feng

We present a tight binding theory of the Dirac point resonances due to adsorbed atoms and molecules on an infinite 2D graphene sheet based on the standard tight binding model of the graphene p-band electronic structure and the extended…

介观与纳米尺度物理 · 物理学 2015-05-19 S. Ihnatsenka , G. Kirczenow

We provide a method for the generation of effective continuum Hamiltonians that goes beyond the well known k.p method in being equally effective in both high, and low (or no) symmetry situations. Our approach is based on a surprising exact…

介观与纳米尺度物理 · 物理学 2019-07-10 N. Ray , F. Rost , D. Weckbecker , M. Vogl , S. Sharma , R. Gupta , O. Pankratov , S. Shallcross

We quantify the accuracy of different non-self-consistent and self-consistent spin-orbit coupling (SOC) treatments in Kohn-Sham and hybrid density-functional theory by providing a band structure benchmark set for the valence and low-lying…

材料科学 · 物理学 2017-09-06 William P. Huhn , Volker Blum

We formulate the effective Hamiltonian of Rashba spin-orbit coupling (RSOC) in $\mathrm{LaAlO_3/SrTiO_3}$ (LAO/STO) heterostructures. We derive analytical expressions of properties, e.g., Rashba parameter, effective mass, band edge energy…

介观与纳米尺度物理 · 物理学 2020-06-18 Cong Son Ho , Weilong Kong , Ming Yang , Andrivo Rusydi , Mansoor B. A. Jalil

We use the method of invariants to derive one- and two-band effective Hamiltonians of a noncentrosymmetric two-dimensional electron gas, in the presence of magnetic field. A complete classification of the antisymmetric spin-orbit and…

介观与纳米尺度物理 · 物理学 2021-12-24 K. V. Samokhin

Pseudo-magnetic field becomes an experimental reality after the observation of zero-field Landau level-like quantization in strained graphene, but it is not expected that the time-reversal symmetric pseudo-magnetic fields will have any…

介观与纳米尺度物理 · 物理学 2013-08-13 Wen-Yu He , Lin He

Spin-orbit coupling (SOC) is a relativistic effect, where an electron moving in an electric field experiences an effective magnetic field in its rest frame. In crystals without inversion symmetry, it lifts the spin degeneracy and leads to…

We investigate collective spin excitations in graphene with proximity-induced spin-orbit coupling (SOC) of the Rashba and valley-Zeeman types, as it is the case, e.g., for graphene on transition- metal-dichalcogenide substrates. It is shown…

强关联电子 · 物理学 2021-11-03 Abhishek Kumar , Saurabh Maiti , Dmitrii L. Maslov

We report the observation of tunable spin-orbit coupling (SOC) for ultracold $^{87}$Rb atoms in hyperfine spin-1 states. Different from most earlier experiments where atomic SOC of pseudo-spin-1/2 are synthesized with Raman coupling lasers,…

量子气体 · 物理学 2017-01-05 Xinyu Luo , Lingna Wu , Jiyao Chen , Qing Guan , Kuiyi Gao , Zhi-Fang Xu , L. You , Ruquan Wang

Graphene is known to have small intrinsic spin-orbit Interaction (SOI). In this review, we demonstrate that SOIs in graphene can be strongly enhanced by proximity effect when graphene is deposited on the top of transition metal…

介观与纳米尺度物理 · 物理学 2021-12-16 Taro Wakamura , Sophie Guéron , Hélène Bouchiat

Previous theoretical studies [W. Cho, C. Platt, R. H. McKenzie, and S. Raghu, Phys. Rev. B 92, 134514 (2015); N. Lera and J. V. Alvarez, Phys. Rev. B 92, 174523 (2015)] have suggested that Li$_{0.9}$Mo$_6$O$_{17}$, a quasi-one dimensional…

超导电性 · 物理学 2016-06-29 Christian Platt , Weejee Cho , Ross H. McKenzie , Ronny Thomale , Sri Raghu

Effective spin-orbit (SO) Hamiltonians for conduction electrons in wurtzite heterostructures are lacking in the literature, in contrast to zincblende structures. Here we address this issue by deriving such an effective Hamiltonian valid for…

介观与纳米尺度物理 · 物理学 2020-04-22 J. Y. Fu , P. H. Penteado , D. R. Candido , G. J. Ferreira , D. P. Pires , E. Bernardes , J. C. Egues

Intrinsic Rashba spin-orbital coupling (SOC) can exist in centrosymmetric materials with local inversion symmetry breaking. Here we show that such a SOC can induce topological superconductivity together with an in-plane Zeeman field in…

超导电性 · 物理学 2024-09-05 Jiong Mei , Kun Jiang , Shengshan Qin , Jiangping Hu

Enhancement of the spin-orbit coupling in graphene may lead to various topological phenomena and also find applications in spintronics. Adatom absorption has been proposed as an effective way to achieve the goal. In particular, great hope…

介观与纳米尺度物理 · 物理学 2015-03-05 Zhenzhao Jia , Baoming Yan , Jingjing Niu , Qi Han , Rui Zhu , Xiaosong Wu , Dapeng Yu

Hybrids of graphene and two dimensional transition metal dichalcogenides (TMDC) have the potential to bring graphene spintronics to the next level. As we show here by performing first-principles calculations of graphene on monolayer…

介观与纳米尺度物理 · 物理学 2015-10-14 Martin Gmitra , Jaroslav Fabian

Magnetic proximity effects in Co/hBN/graphene heterostructures are systematically analyzed via first-principles calculations, demonstrating a pronounced localized spatial variation of the induced spin polarization of graphene's Dirac…

介观与纳米尺度物理 · 物理学 2026-01-13 Klaus Zollner , Lukas Cvitkovich , Riccardo Silvioli , Andreas V. Stier , Jaroslav Fabian