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A combination of small-cluster exact-diagonalization calculations and a well-controlled approximative method is used to examine the ground-state phase diagrams of the spin-one-half Falicov-Kimball model extended by the spin-dependent…

强关联电子 · 物理学 2015-06-25 Martin Zonda

We study the relaxation of a spin density injected into a two-dimensional electron system with generic spin-orbit interactions. Our model includes the Rashba as well as linear and cubic Dresselhaus terms. We explicitly derive a general…

材料科学 · 物理学 2013-05-29 Tudor D. Stanescu , Victor Galitski

The preferred spin orientation of a magnetic ion can be predicted on the basis of density functional theory (DFT) calculations including electron correlation and spin-orbit coupling (SOC). However, most chemists and physicists are unaware…

强关联电子 · 物理学 2015-12-31 Myung-Hwan Whangbo , Elijah E. Gordon , Hongjun Xiang , Hyun-Joo Koo , Changhoon Lee

The Harper-Hofstadter problem for two-dimensional electron gas with Rashba spin-orbit coupling subject to periodic potential and perpendicular magnetic field is studied analytically and numerically. The butterfly-like energy spectrum,…

介观与纳米尺度物理 · 物理学 2009-11-11 V. Ya. Demikhovskii , A. A. Perov

Anisotropic magnetic exchange interactions lead to a surprisingly rich variety of the magnetic properties. Considering the spin orbit coupling (SOC) as perturbation, we extract the general expression of a bilinear spin Hamiltonian,…

材料科学 · 物理学 2023-08-29 Di Wang , Xiangyan Bo , Feng Tang , Xiangang Wan

We calculate spectra of magnetic excitations in the spin-spiral state of perovskite manganates. The spectra consist of several branches corresponding to different polarizations and different ways of diffraction from the static magnetic…

强关联电子 · 物理学 2015-07-07 Alexander I. Milstein , Oleg P. Sushkov

We consider the Schr\"odinger operator with constant magnetic field defined on the half-plane with a Dirichlet boundary condition, $H_0$, and a decaying electric perturbation $V$. We analyze the spectral density near the Landau levels,…

谱理论 · 数学 2017-06-23 Vincent Bruneau , Pablo Miranda

In this paper, the Schr{\"o}dinger equation in a magnetic field is utilized to study the effect of the magnetic field on $B$ mesons. The mass spetrum of $B$ mesons are numerically calculated for different magnetic field strengths by solving…

综合物理 · 物理学 2025-03-12 Bing-Rui Ma , Hao Chen , Cheng-Qun Pang

We introduce a new representation of an integer spin $S$ via bosonic operators which is useful in describing the paramagnetic phase and transitions to magnetically ordered phases in magnetic systems with large single-ion easy-plane…

强关联电子 · 物理学 2012-06-01 Alexey V Sizanov , Arseny V Syromyatnikov

Electronic transport in a one-dimensional mesoscopic ring threaded by a magnetic flux is studied in presence of Rashba and Dresselhaus spin-orbit interactions. A completely analytical technique within a tight-binding formalism unveils the…

介观与纳米尺度物理 · 物理学 2011-08-30 Santanu K. Maiti , Moumita Dey , Shreekantha Sil , Arunava Chakrabarti , S. N. Karmakar

We investigate magnetic properties in the $S=1$ Kitaev model in the anisotropic limit. Performing the fourth-order perturbation expansion with respect to the $x$-bonds, $y$-bonds, and magnetic field, we derive the effective Hamiltonian,…

强关联电子 · 物理学 2020-04-22 Tetsuya Minakawa , Joji Nasu , Akihisa Koga

We report the observation of Shubnikov-de Haas (SdH) oscillations in single crystals of the Rashba spin-splitting compound BiTeI, from both longitudinal ($R_{xx}(B)$) and Hall ($R_{xy}(B)$) magnetoresistance. Under magnetic field up to 65…

材料科学 · 物理学 2013-05-08 C. Martin , E. D. Mun , H. Berger , V. S. Zapf , D. B. Tanner

We study the de Haas--van Alphen (dHvA) oscillations in the magnetization of a two-dimensional electron gas (2DEG) under the influence of the edge states and/or the Rashba spin-orbit interaction (SOI). The boundaries of the systems lift…

介观与纳米尺度物理 · 物理学 2015-05-13 Zhigang Wang , Wei Zhang , Ping Zhang

The Sun's magnetic field is strongly structured over a broad range of scales. The magnetic spatial power spectral analysis provides a powerful tool to understand the various scales of magnetic fields and their interaction with plasma…

太阳与恒星天体物理 · 物理学 2023-08-16 Yukun Luo , Jie Jiang , Ruihui Wang

Quantum oscillations of the spin conductance through regular and chaotic 2D quantum dots under the varying Rashba spin orbit interaction and at zero magnetic field have been numerically calculated by summing up the spin evolution matrices…

介观与纳米尺度物理 · 物理学 2016-08-31 Cheng-Hung Chang , Anatoly G. Mal'shukov , Koung-An Chao

We consider here the problem of a "giant spin", with spin quantum number S>>1, interacting with a set of microscopic spins. Interactions between the microscopic spins are ignored. This model describes the low-energy properties of magnetic…

凝聚态物理 · 物理学 2015-06-25 I. S. Tupitsyn , N. V. Prokof'ev , P. C. E. Stamp

In the review article the influence of the Rashba spin-orbit coupling on the two-dimensional electrons and holes in a strong perpendicular magnetic field is described in Landau gauge using the spinor-type two-component wave functions with…

强关联电子 · 物理学 2013-09-05 S. A. Moskalenko , I. V. Podlesny , E. V. Dumanov , A. A. Kiselyov

We study the ground state properties of spin-half bosons subjected to the Rashba spin-orbit coupling in two dimensions. Due to the enhancement of the low energy density of states, it is expected that the effect of interaction becomes more…

强关联电子 · 物理学 2016-03-02 Zhihao Xu , Zhenhua Yu , Shizhong Zhang

While the ground state of magnetic materials is in general well described on the basis of spin density functional theory (SDFT), the theoretical description of finite-temperature and non-equilibrium properties require an extension beyond…

材料科学 · 物理学 2022-06-22 Sergiy Mankovsky , Hubert Ebert

The implementation of an efficient self-consistent field (SCF) method including both scalar relativistic effects and spin-orbit interaction in density functional theory (DFT) is presented. We make use of Gaussian-type orbitals (GTOs) and…

化学物理 · 物理学 2024-05-03 Yannick J. Franzke , Werner M. Schosser , Fabian Pauly