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相关论文: Full-zone Persistent Spin Textures with Giant Spin…

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A persistent spin helix (PSH) in spin-orbit-coupled two-dimensional electron systems was recently predicted to exist in two cases: [001] quantum wells (QWs) with equal coupling strengths of the Rashba and the Dresselhaus interactions (RD),…

介观与纳米尺度物理 · 物理学 2007-05-23 Ming-Hao Liu , Kuo-Wei Chen , Son-Hsien Chen , Ching-Ray Chang

Halide perovskites are perceived to be the promising class of materials for optoelectronics, spinorbitronics and topological electronics due to presence of strong spin-orbit coupling and polarized field. Here, we develop a Hamiltonian using…

材料科学 · 物理学 2022-02-02 Mayank Gupta , B. R. K. Nanda

Vicinal surfaces of bismuth are unique test-beds for investigating one-dimensional (1D) spin-polarised surface states that may one day be used in spintronic devices. In this work, two such states have been observed for the (112) surface…

Spin-orbit coupled systems generally break the spin rotation symmetry. However, for a model with equal Rashba and Dresselhauss coupling constant (the ReD model), and for the $[110]$ Dresselhauss model, a new type of SU(2) spin rotation…

其他凝聚态物理 · 物理学 2009-11-11 B. Andrei Bernevig , J. Orenstein , Shou-Cheng Zhang

We demonstrate the existence of semivortex (SV) solitons, with vorticities $0$ and $1$ in the two components, in a two-dimensional (2D) fermionic spinor system under the action of the Rashba-type spin-orbit coupling in the combination with…

斑图形成与孤子 · 物理学 2024-01-22 Pablo Díaz , Hugo Molinares , Laura M. Pérez , David Laroze , Jean Bragard , Boris A. Malomed

Resonant behavior involving spin-orbit entangled states occurs for spin transport along a narrow channel defined in a two-dimensional electron gas, including an apparent rapid relaxation of the spin polarization for special values of the…

介观与纳米尺度物理 · 物理学 2014-04-02 D. H. Berman , M. Khodas , M. E. Flatté

We explore the spin and charge properties of electrons in wurtzite semiconductor nanowires where radial and axial confinement leads to tubular or ring-shaped quantum structures. Accounting for spin-orbit interaction induced by the wurtzite…

介观与纳米尺度物理 · 物理学 2020-05-13 Michael Kammermeier , Adrian Seith , Paul Wenk , John Schliemann

Spin polarization effects in nonmagnetic materials are generally believed as an outcome of spin-orbit coupling provided that the global inversion symmetry is lacking, also known as 'spin-momentum locking'. The recently discovered hidden…

Remarkably persistent mixing and non-mixing regions (islands) are observed to coexist in a three-dimensional dynamical system where randomness is expected. The track of an x-ray opaque particle in a spherical shell half-filled with dry…

软凝聚态物质 · 物理学 2018-09-05 Zafir Zaman , Mengqi Yu , Paul P. Park , Julio M. Ottino , Richard M. Lueptow , Paul B. Umbanhowar

Ferroelectric Rashba semiconductors (FERSC) are a novel class of multifunctional materials showing a giant Rashba spin splitting which can be reversed by switching the electric polarization. Although they are excellent candidates as…

材料科学 · 物理学 2019-08-28 Carmine Autieri , Paolo Barone , Jagoda Slawinska , Silvia Picozzi

The pseudospin symmetry (PSS) is a relativistic dynamical symmetry directly connected with the small component of the nucleon Dirac wave function. Much effort has been made to study this symmetry in bound states. Recently, a rigorous…

核理论 · 物理学 2014-10-23 Bing-Nan Lu , En-Guang Zhao , Shan-Gui Zhou

In this paper, the spin transfer torque (STT) and the exchange coupling of the Josephson junctions containing interesting cases of diffusive/ballistic-triplet/singlet ferromagnetic superconductor materials together with diffusive Josephson…

介观与纳米尺度物理 · 物理学 2019-07-16 Zahra Shomali , Reza Asgari

Spin-orbit coupling (SOC) in conjunction with broken inversion symmetry acts as a key ingredient for several intriguing quantum phenomena viz. persistent spin textures, topological surface states and Rashba-Dresselhaus (RD) effects. The…

材料科学 · 物理学 2021-09-28 Preeti Bhumla , Deepika Gill , Sajjan Sheoran , Saswata Bhattacharya

Kardar-Parisi-Zhang (KPZ) scaling has been observed in discrete polariton lattices, enabled by engineered band structures that stabilize the condensate. Whether this universality extends to intrinsically continuous systems with natural…

量子气体 · 物理学 2026-04-17 Mikhail Misko , Natalia Starkova , Pavlos G. Lagoudakis

We propose and prove a family of generalized Lieb-Schultz-Mattis (LSM) theorems for symmetry protected topological (SPT) phases on boson/spin models in any dimensions. The "conventional" LSM theorem, applicable to e.g. any translation…

强关联电子 · 物理学 2021-08-11 Shenghan Jiang , Meng Cheng , Yang Qi , Yuan-Ming Lu

We consider symmetry protected topological (SPT) phases with crystalline point group symmetry, dubbed point group SPT (pgSPT) phases. We show that such phases can be understood in terms of lower-dimensional topological phases with on-site…

强关联电子 · 物理学 2017-04-06 Hao Song , Sheng-Jie Huang , Liang Fu , Michael Hermele

We have solved numerically the ground states of a Bose-Einstein condensate in the presence of dipolar interparticle forces using a semiclassical approach. Our motivation is to model, in particular, the spontaneous spin textures emerging in…

量子气体 · 物理学 2010-07-14 J. A. M. Huhtamäki , M. Takahashi , T. P. Simula , T. Mizushima , K. Machida

The Kardar-Parisi-Zhang (KPZ) class is a paradigmatic example of universality in nonequilibrium phenomena, but clear experimental evidences of asymptotic 2D-KPZ statistics are still very rare, and far less understanding stems from its…

统计力学 · 物理学 2017-06-26 R. A. L. Almeida , S. O. Ferreira , I. Ferraz , T. J. Oliveira

The Dresselhaus and Rashba effects are well-known phenomena in solid-state physics, in which spin-orbit coupling (SOC) splits spin-up and spin-down energy bands of nonmagnetic non-centrosymmetric crystals. Here, we discover a new…

材料科学 · 物理学 2020-01-08 Kai Liu , Wei Luo , Junyi Ji , Paolo Barone , Silvia Picozzi , Hongjun Xiang

Theoretical study is performed of a single-mode polariton system with linear coupling of spin components. When combined with an ordinary two-particle interaction, the spin coupling involves a spontaneous symmetry breaking accompanied by a…

介观与纳米尺度物理 · 物理学 2022-08-31 S. S. Gavrilov