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相关论文: Efficient Control of the Rashba Effective Magnetic…

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The magnetization of heavy holes in III-V semiconductor quantum wells with Rashba spin-orbit coupling (SOC) in an external perpendicular magnetic field is theoretically studied. We concentrate on the effects on the magnetization induced by…

介观与纳米尺度物理 · 物理学 2009-03-09 Cheng Fang , Zhigang Wang , Shu-Shen Li , Ping Zhang

We present semiclassical and quantum mechanical results for the effects of a strong magnetic field in Quantum Wires in the presence of Rashba Spin Orbit coupling. Analytical and numerical results show how the perturbation acts in the…

介观与纳米尺度物理 · 物理学 2016-08-31 S. Bellucci , P. Onorato

We report on spatially resolved measurements of the spin-orbit effective magnetic field in a GaAs/InGaAs quantum-well. Biased gate electrodes lead to an electric-field distribution in which the quantum-well electrons move according to the…

介观与纳米尺度物理 · 物理学 2009-11-13 L. Meier , G. Salis , E. Gini , I. Shorubalko , K. Ensslin

A variational theory is presented of A$^{1-}$ and A$^{2-}$ centers, i.e. of a negative acceptor ion localizing one and two conduction electrons, respectively, in a GaAs/GaAlAs quantum well in the presence of a magnetic field parallel to the…

量子气体 · 物理学 2015-04-10 M. Kubisa , K. Ryczko , I. Bisotto , C. Chaubet , A. Raymond , W. Zawadzki

We study the ground-state properties of electrons confined to a quantum wire and subject to a smoothly modulated Rashba spin-orbit coupling. When the period of the modulation becomes commensurate with the band filling, the Rashba coupling…

介观与纳米尺度物理 · 物理学 2009-07-28 G. I. Japaridze , Henrik Johannesson , Alvaro Ferraz

We predict here that a slab made of a doped semiconductor can exhibit anomalous refraction under the application of a static magnetic field. This anomalous refraction takes place in the far-infrared range and it occurs for any angle of…

光学 · 物理学 2019-03-27 E. Moncada-Villa , A. I. Fernández-Domínguez , J. C. Cuevas

We investigate theoretically the effect of a magnetic field on intersubband polaritons in an asymmetric quantum well placed inside an optical resonator. It is demonstrated that the field-induced diamagnetic shift of electron subbands in the…

介观与纳米尺度物理 · 物理学 2016-07-28 A. A. Pervishko , O. V. Kibis , I. A. Shelykh

We report experimental measurements showing how one can combine quantum interference and thermal Doppler shifts at room temperature to detect weak magnetic fields. We pump ${}^{87}$Rb atoms to a highly-excited, Rydberg level using a probe…

原子物理 · 物理学 2024-07-25 Shovan Kanti Barik , Silpa B S , M Venkat Ramana , Shovan Dutta , Sanjukta Roy

We show that the tunable gate voltage in n-doped AlGaAs/GaAs QW (quantum well) is a key in designing an efficient and ultrafast MRAM (magnetoresistive random access memory). The Rashba spin-orbit coupling in such QWs can be tuned…

介观与纳米尺度物理 · 物理学 2023-05-16 Sushmita Saha , Deepak Sain , Alestin Mawrie

The use of an external transverse magnetic field to trigger and to control electron self-injection in laser- and particle-beam driven wakefield accelerators is examined analytically and through full-scale particle-in-cell simulations. A…

等离子体物理 · 物理学 2011-08-24 J. Vieira , S. F. Martins , V. B. Pathak , R. A. Fonseca , W. B. Mori , L. O. Silva

Magnetization dynamics in a ferromagnet can induce a spin-dependent electric field through spin motive force. Spin current generated by the spin-dependent electric field can in turn modify the magnetization dynamics through spin-transfer…

介观与纳米尺度物理 · 物理学 2012-05-29 Kyoung-Whan Kim , Jung-Hwan Moon , Kyung-Jin Lee , Hyun-Woo Lee

We show that the interaction between a superconducting order parameter and the magnetic moment of an atomic cluster in a two-dimensional s-wave superconductor with Rashba spin-orbit coupling generates magnetic anisotropy that can be…

介观与纳米尺度物理 · 物理学 2017-10-24 Eugene M. Chudnovsky

Rashba spin-orbit interactions generated by time-dependent electric fields acting on weak links (that couple together non-magnetic macroscopic leads) can magnetize the junction. The Rashba spin-orbit interaction that affects the spins of…

介观与纳米尺度物理 · 物理学 2025-10-23 Debashree Chowdhury , O. Entin-Wohlman , A. Aharony , R. I. Shekhter , M. Jonson

The emergent induction of spiral magnets that was proposed [Jpn. J. Appl. Phys. 58, 120909 (2019)] and recently demonstrated [Nature 586, 232 (2020)] is shown to be further extended by a comprehensive treatment of the Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2021-03-05 Jun'ichi Ieda , Yuta Yamane

We analyze the modification of the intersubband absorption of electrons in quantum wells under intense THz irradiation. An expression for the induced current is obtained, based on the adiabatic approach and the resonant approximation. We…

材料科学 · 物理学 2007-05-23 A. Hernanez-Cabrera , P. Aceituno , F. T. Vasko

We consider Rashba spin-orbit effects on spin transport driven by an electric field in semiconductor quantum wells. We derive spin diffusion equations that are valid when the mean free path and the Rashba spin-orbit interaction vary on…

介观与纳米尺度物理 · 物理学 2009-11-13 Arne Brataas , A. G. Mal'shukov , Yaroslav Tserkovnyak

Designing two-dimensional (2D) Rashba semiconductors, exploring the underlying mechanism of Rashba effect, and further proposing efficient and controllable approaches are crucial for the development of spintronics. On the basis of…

介观与纳米尺度物理 · 物理学 2025-01-10 Haipeng Wu , Qikun Tian , Jinghui Wei , Ziyu Xing , Guangzhao Qin , Zhenzhen Qin

We explore the impact of a Rashba-type spin-orbit interaction in the conduction band on the spin dynamics of hot excitons in diluted magnetic semiconductor quantum wells. In materials with strong spin-orbit coupling, we identify parameter…

介观与纳米尺度物理 · 物理学 2019-07-30 Florian Ungar , Pablo Ignacio Tamborenea , Vollrath Martin Axt

The quantum mechanical screening of a spin via conduction electrons depends sensitively on the environment seen by the magnetic impurity. A high degree of responsiveness can be obtained with metal complexes, as the embedding of a metal ion…

We have studied the electronic properties and optical absorption spectra of three different cases of donor centers, D^{0}, D^{-} and D^{2-}, which are subjected to a perpendicular magnetic field, using the exact diagonalization method. The…

介观与纳米尺度物理 · 物理学 2007-10-10 Jaime Zaratiegui García , Pekka Pietiläinen , Petteri Hyvönen