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We use large-scale DFT calculations to investigate with unprecedented detail the so-called spin-orbit (SO) proximity effect in graphene adsorbed on the Pt(111) and Ni(111)/Au semi-infinite surfaces, previously studied via spin and angle…

材料科学 · 物理学 2018-09-12 Jagoda Slawinska , Jorge I. Cerda

Spin-orbital coupling (SOC) and parity-time ($\mathcal{PT}$) symmetry both have attracted paramount research interest in condensed matter physics, cold atom physics, optics and acoustics to develop spintronics, quantum computation, precise…

量子气体 · 物理学 2022-06-29 Jieli Qin , Lu Zhou , Guangjiong Dong

We describe the treatment of Rashba spin-orbit coupling (SOC) in interacting many-fermion systems within the auxiliary-field quantum Monte Carlo framework, and present a set of illustrative results. These include numerically exact…

强关联电子 · 物理学 2019-06-10 Peter Rosenberg , Hao Shi , Shiwei Zhang

Spin orbit coupling (SOC) is the key to realizing time-reversal invariant topological phases of matter. Famously, SOC was predicted by Kane and Mele to stabilize a quantum spin Hall insulator; however, the weak intrinsic SOC in monolayer…

The spin-orbit coupling (SOC) interactions, electron correlation effects and Hund coupling cooperate and compete with each other, leading to novel properties, quantum phase and non-trivial topological electronic behavior in iridium oxides.…

强关联电子 · 物理学 2018-12-19 Xing Ming , Xiangang Wan , Carmine Autieri , Jianfeng Wen , Xiaojun Zheng

We demonstrate all-optical implementation of spin-orbit coupling (SOC) in a two-electron Fermi gas of $^{173}$Yb atoms by coupling two hyperfine ground states with a narrow optical transition. Due to the SU($N$) symmetry of the $^1$S$_0$…

量子气体 · 物理学 2017-01-11 Bo Song , Chengdong He , Shanchao Zhang , Elnur Hajiyev , Wei Huang , Xiong-Jun Liu , Gyu-Boong Jo

Orthorhombic SrIrO3 subjected to strain show tunable transport properties. With underlying symmetry remaining invariant, these properties are associated with IrO6 octahedral tilting. Adopting to first-principles methods, the effects of…

材料科学 · 物理学 2015-09-02 Vijeta Singh , J. J. Pulikkotil

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

We have calculated the optical conductivity of a disorder-free single graphene sheet in the presence of spin-orbit coupling, using the Kubo formalism. Both intrinsic and structural-inversion-asymmetry induced types of spin splitting are…

介观与纳米尺度物理 · 物理学 2010-01-21 P. Ingenhoven , J. Z. Bernad , U. Zuelicke , R. Egger

We investigate the spin-orbit coupling (SOC) effects in $\alpha$- and $\kappa$-phase BEDT-TTF and BEDT-TSF organic salts. Contrary to the assumption that SOC in organics is negligible due to light C, S, H atoms, we show the relevance of…

强关联电子 · 物理学 2017-02-15 Stephen M. Winter , Kira Riedl , Roser Valenti

Recent theoretical and experimental works on carbon nanotubes and graphene samples have revealed that spin-orbit interactions, though customarily ignored in carbon-based materials, are more important and complex than it was thought. We…

材料科学 · 物理学 2015-05-20 M. P. López-Sancho , M. C. Muñoz

We investigate the electronic structure of graphene on a series of 2D hexagonal nitride insulators hXN, X = B, Al, and Ga, with DFT calculations. A symmetry-based model Hamiltonian is employed to extract orbital parameters and spin-orbit…

介观与纳米尺度物理 · 物理学 2021-02-18 Klaus Zollner , Aron W. Cummings , Stephan Roche , Jaroslav Fabian

We theoretically study dilute superfluidity of spin-1 bosons with antiferromagnetic interactions and synthetic spin-orbit coupling (SOC) in a one-dimensional lattice. Employing a combination of density matrix renormalization group and…

量子气体 · 物理学 2020-03-11 Siddhartha Saha , E. J. König , Junhyun Lee , J. H. Pixley

We observe spin squeezing in three-component Bose gases where all three hyperfine states are coupled by synthetic spin-orbit coupling. This phenomenon is a direct consequence of spin-orbit coupling, as can be seen clearly from an effective…

量子物理 · 物理学 2017-02-01 X. Y. Huang , F. X. Sun , W. Zhang , Q. Y. He , C. P. Sun

The intrinsic spin-orbit coupling (ISOC) in bilayer graphene is investigated. We find that the largest ISOC between $\pi$ electrons origins from the following hopping processes: a $\pi$ electron hops to $\sigma$ orbits of the other layer…

介观与纳米尺度物理 · 物理学 2015-03-14 Hai-Wen Liu , X. C. Xie , Qing-feng Sun

We investigate the twist angle dependence of spin-orbit coupling (SOC) proximity effects and charge-to-spin conversion (CSC) in graphene/WSe$_2$ heterostructures from first principles. The CSC is shown to strongly depend on the twist angle,…

The collective dipole mode is induced and measured in a spin-orbit (SO) coupled degenerate Fermi gas of $^{173}$Yb atoms. Using a differential optical Stark shift, we split the degeneracy of three hyperfine states in the ground manifold,…

量子气体 · 物理学 2018-11-27 Shanchao Zhang , Chengdong He , Elnur Hajiyev , Zejian Ren , Bo Song , Gyu-Boong Jo

In most existing theories for iron-based superconductors, spin-orbit coupling (SOC) has been assumed insignificant. Even though recent experiments have revealed an influence of SOC on the electronic band structure, whether SOC fundamentally…

超导电性 · 物理学 2017-05-23 Mingwei Ma , Philippe Bourges , Yvan Sidis , Yang Xu , Shiyan Li , Biaoyan Hu , Jiarui Li , Fa Wang , Yuan Li

We derive an effective Hamiltonian which describes the dynamics of electrons in the conduction band of transition metal dichalcogenides (TMDC) in the presence of perpendicular electric and magnetic fields. We discuss in detail both the…

介观与纳米尺度物理 · 物理学 2014-03-18 Andor Kormányos , Viktor Zólyomi , Neil D. Drummond , Guido Burkard

We perform a comparative study of the spin relaxation by spin-orbit coupling induced from adatoms (hydrogen and fluorine) in graphene. Two methods are applied, giving consistent results: a full quantum transport simulation of a graphene…

介观与纳米尺度物理 · 物理学 2015-08-19 Jan Bundesmann , Denis Kochan , Fedor Tkatschenko , Jaroslav Fabian , Klaus Richter