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We study spin configurations of classical magnetic impurities placed close to the edge of a two-dimensional topological superconductor both analytically and numerically. First, we demonstrate that the spin of a single magnetic impurity…

介观与纳米尺度物理 · 物理学 2023-04-18 Katharina Laubscher , Dmitry Miserev , Vardan Kaladzhyan , Daniel Loss , Jelena Klinovaja

We study Rudermann-Kittel-Kasuya-Yosida (RKKY) interaction in carbon nanotubes (CNTs) and graphene nanoribbons in the presence of spin orbit interactions and magnetic fields. For this we evaluate the static spin susceptibility tensor in…

介观与纳米尺度物理 · 物理学 2013-02-04 Jelena Klinovaja , Daniel Loss

We show that the spin-orbit interaction (SOI) arising due to the in-plane electric field of the Coulomb repulsion between electrons in a two-dimensional quantum well produces an attractive component in the pair interaction Hamiltonian that…

强关联电子 · 物理学 2020-02-12 Yasha Gindikin , Vladimir A. Sablikov

We study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in p-doped transition metal dichalcogenides such as MoS$_2$ and WS$_2$. We consider magnetic impurities hybridized to the Mo d-orbitals characteristic of the valence bands. Using…

介观与纳米尺度物理 · 物理学 2014-10-13 D. Mastrogiuseppe , N. Sandler , S. Ulloa

We theoretically explore the possibility of creating spin quantum entanglement in a system of two electrons confined respectively in two vertically coupled quantum dots in the presence of Rashba type spin-orbit coupling. We find that the…

介观与纳米尺度物理 · 物理学 2009-11-11 Nan Zhao , L. Zhong , Jia-Lin Zhu , C. P. Sun

We investigate theoretically electron spin states in one dimensional (1D) and two dimensional (2D) hard-wall mesoscopic rings in the presence of both the Rashba spin-orbit interaction (RSOI) and the Dresselhaus spin-orbit interaction (DSOI)…

介观与纳米尺度物理 · 物理学 2009-11-11 J. S. Sheng , Kai Chang

Ruderman-Kittel-Kasuya-Yosida (RKKY) is an essential long range magnetic interaction between magnetic impurities or magnetic layered structures, the magnitude of which oscillates with the distance ($\mathrm{R}$) between them. We have…

介观与纳米尺度物理 · 物理学 2023-02-15 Anirban Kundu , M. B. A. Jalil

A novel method and nanodevice are introduced that allows to rotate the single electron spin confined in a gated electrostatic InSb nanowire quantum dot. Proposed method does not require application of any (oscillating or static) external…

介观与纳米尺度物理 · 物理学 2016-01-22 J. Pawłowski , P. Szumniak , S. Bednarek

We carried out a nested Schrieffer-Wolff transformation of an Anderson two-impurity Hamiltonian to study the spin-spin coupling between two dynamical quantum dots under the influence of rotating transverse magnetic field. As a result of the…

介观与纳米尺度物理 · 物理学 2015-06-16 Vahram L. Grigoryan , Jiang Xiao

We analyze the dynamics of the helical edge modes of a quantum spin Hall state in the presence of a spatially non-uniform Rashba spin-orbit (SO) interaction. A randomly fluctuating Rashba SO coupling is found to open a scattering channel…

介观与纳米尺度物理 · 物理学 2010-07-01 Anders Ström , Henrik Johannesson , G. I. Japaridze

Spin-orbit (SO) coupling is the crucial parameter to drive topological insulating phases in electronic band models. In particular, the generic emergence of SO coupling involves the Rashba term which fully breaks the SU(2) spin symmetry. As…

强关联电子 · 物理学 2015-06-18 Manuel Laubach , Johannes Reuther , Ronny Thomale , Stephan Rachel

We study the spin dynamics in a high-mobility two dimensional electron gas (2DEG) with generic spin-orbit interactions (SOIs). We derive a set of spin dynamic equations which capture the purely exponential to the damped oscillatory spin…

材料科学 · 物理学 2015-05-27 Xin Liu , Xiong-Jun Liu , Jairo Sinova

We propose purely electric manipulation of spin qubits by means of the spin-orbit interaction (SOI) {\it without magnetic field or magnets} in a double-quantum dot. All the unitary transformations can be constructed by the time-dependent…

介观与纳米尺度物理 · 物理学 2010-11-08 Atsuo Shitade , Motohiko Ezawa , Naoto Nagaosa

We show how a spin interaction between electrons localized in neighboring quantum dots can be induced and controlled optically. The coupling is generated via virtual excitation of delocalized excitons and provides an efficient coherent…

凝聚态物理 · 物理学 2009-11-07 C. Piermarocchi , Pochung Chen , L. J. Sham , D. G. Steel

We analyze the Ruderman-Kettel-Kasuya-Yosida(RKKY) interaction between magnetic impurities embedded in the helical metal on the surface of three-dimensional topological insulators. Apart from the conventional RKKY terms, the spin-momentum…

材料科学 · 物理学 2015-05-18 Fei Ye , Guo-Hui Ding , Hui Zhai , Zhao-Bin Su

In 1984, Bychkov and Rashba introduced a simple form of spin-orbit coupling to explain certain peculiarities in the electron spin resonance of two-dimensional semiconductors. Over the past thirty years, similar ideas have been leading to a…

介观与纳米尺度物理 · 物理学 2015-09-02 A. Manchon , H. C. Koo , J. Nitta , S. M. Frolov , R. A. Duine

We study the influence of strong nonmagnetic disorder on the Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions between diluted magnetic moments in metals. We find that the probability distribution for the RKKY interactions assumes strongly…

强关联电子 · 物理学 2011-11-09 J. A. Sobota , D. Tanaskovic , V. Dobrosavljevic

In this work we study interacting electrons on square lattice in the presence of strong Rashba spin-orbit interaction. The spin-orbit term forces the time-reversal electron states to be paired in even Cooper channels. For concreteness, we…

强关联电子 · 物理学 2019-03-27 Rasoul Ghadimi , Mehdi Kargarian , S. Akbar Jafari

We present the effective low-energy theory for interacting 1D quantum wires subject to Rashba spin-orbit coupling. Under a one-loop renormalization group scheme including all allowed interaction processes for not too weak Rashba coupling,…

介观与纳米尺度物理 · 物理学 2009-06-03 Andreas Schulz , Alessandro De Martino , Philip Ingenhoven , Reinhold Egger

Strong Rashba spin-orbit coupling (SOC) of the two-dimensional electron gas (2DEG) at the oxide interface $\mathrm{LaAlO_{3}/SrTiO_{3}}$ underlies a variety of exotic physics, but its nature is still under debate. We derive an effective…

介观与纳米尺度物理 · 物理学 2015-06-10 Jianhui Zhou , Wen-Yu Shan , Di Xiao