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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

Energy spectrum of electrons (holes) doped into a two-dimensional antiferromagnetic insulator is quantized in an external magnetic field of arbitrary direction. A peculiar dependence of de Haas-van Alphen (dHvA) or Shubnikov-de Haas (SdH)…

强关联电子 · 物理学 2009-11-13 V. V. Kabanov , A. S. Alexandrov

The magnetization of anisotropic quantum dots in the presence of the Rashba spin-orbit interaction has been studied for three interacting electrons in the dot. We observe unique behaviors of magnetization that are direct reflections of the…

介观与纳米尺度物理 · 物理学 2015-01-07 Siranush Avetisyan , Tapash Chakraborty , Pekka Pietilainen

Torque magnetometry at low temperature and in high magnetic fields B is performed on a MgZnO/ZnO heterostructure incorporating a high-mobility two-dimensional electron system. We find a sawtooth-like quantum oscillatory magnetization M(B),…

介观与纳米尺度物理 · 物理学 2014-02-20 M. Brasse , S. M. Sauther , J. Falson , Y. Kozuka , A. Tsukazaki , Ch. Heyn , M. A. Wilde , M. Kawasaki , D. Grundler

The de Haas-van Alphen effect (dHvAe) describes the periodic oscillation of the magnetisation in a material as a function of inverse applied magnetic field. It forms the basis of a well established procedure for measuring Fermi surface…

介观与纳米尺度物理 · 物理学 2017-05-03 Johannes Knolle , Nigel R. Cooper

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 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

Two-dimensional hole gases in semiconductor quantum wells are promising platforms for spintronics and quantum computation but suffer from the lack of the $\bf{k}$-linear term in the Rashba spin-orbit coupling (SOC), which is essential for…

介观与纳米尺度物理 · 物理学 2021-03-03 Jia-Xin Xiong , Shan Guan , Jun-Wei Luo , Shu-Shen Li

Spin-orbit coupling (SOC) emerging at the interfaces of superconducting magnetic tunnel junctions is at the heart of multiple unprecedented physical phenomena, covering triplet proximity effects induced by unconventional (spin-flip) Andreev…

超导电性 · 物理学 2025-02-19 Andreas Costa , Jaroslav Fabian

Associated with spin-orbit coupling (SOC) and inversion symmetry breaking, Rashba spin polarization opens a new avenue for spintronic applications that was previously limited to ordinary magnets. However, spin polarization effects in actual…

计算物理 · 物理学 2016-10-12 Qihang Liu , Xiuwen Zhang , J. A. Waugh , D. S. Dessau , Alex Zunger

We report the experimental observation of the spin-Hall effect in a two-dimensional (2D) hole system with Rashba spin-orbit coupling. The 2D hole layer is a part of a p-n junction light-emitting diode with a specially designed co-planar…

介观与纳米尺度物理 · 物理学 2016-08-31 Joerg Wunderlich , Bernd Kaestner , Jairo Sinova , Tomas Jungwirth

This paper is to explore the de Haas-van Alphen effect $(dHvA)$ of graphene in the presence of an in-plane uniform electric field. Three major findings are yielded. First of all, the electric field is found to modulate the de Haas-van…

介观与纳米尺度物理 · 物理学 2015-03-13 Shengli Zhang , Ning Ma , Erhu Zhang

We investigate spin transport of heavy holes in III-V semiconductor quantum wells in the presence of spin-orbit coupling of the Rashba type due to structure-inversion asymmetry. Similarly to the case of electrons, the longitudinal spin…

介观与纳米尺度物理 · 物理学 2007-05-23 John Schliemann , Daniel Loss

In past few decades, Rashba spin-orbit coupling (SOC) has been successfully employed for the emergence of exotic phenomena at the quantum oxide interfaces. In these systems, the combined effect of charge transfer, broken symmetries and SOC…

材料科学 · 物理学 2022-05-24 Megha Vagadia , Jaya Prakash Sahoo , Ankit Kumar , Suman Sardar , Tejas Tank , D. S. Rana

In 2D systems with a spin-orbit interaction, magnetic focussing can be used to create a spatial separation of particles with different spin. Here we measure hole magnetic focussing for two different magnitudes of the Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2023-01-25 M. J. Rendell , S. D. Liles , A. Srinivasan , O. Klochan , I. Farrer , D. A. Ritchie , A. R. Hamilton

Our recent study [Phys. Rev. B 103, 085309 (2021)] verified the existence of $\bf{k}$-linear Rashba spin-orbit coupling (SOC) of two-dimensional hole gases in quantum wells (QWs) which originates from a combination of heavy-hole-light-hole…

介观与纳米尺度物理 · 物理学 2022-03-17 Jia-Xin Xiong , Shan-Guan , Jun-Wei Luo , Shu-Shen Li

We investigate the influence of a perpendicular magnetic field on the spectral and spin properties of a ballistic quasi-one-dimensional electron system with Rashba effect. The magnetic field strongly alters the spin-orbit induced…

介观与纳米尺度物理 · 物理学 2009-11-10 Stefan Debald , Bernhard Kramer

We explain how Rashba spin-orbit coupling (SOC) in a two-dimensional electron gas (2DEG), or in a conventional $s$-wave superconductor, can lead to a large magnetoresistance even with one ferromagnet. However, such enhanced…

介观与纳米尺度物理 · 物理学 2023-08-15 Chenghao Shen , Ranran Cai , Alex Matos-Abiague , Wei Han , Jong E. Han , Igor Zutic

Magneto-transport properties of a two-dimensional electron gas in a chain of planar quantum rings are investigated under the Rashba spin-orbit interaction and a transverse homogeneous magnetic field. A modulation potential function models…

介观与纳米尺度物理 · 物理学 2025-07-30 Armen Harutyunyan

The theoretical investigation of the cluster de Haas - van Alphen (dHvA) oscillations in three-dimensional systems performed for the first time. Applying a three-dimensional oscillator model to systems with electron numbers $10< N \leq…

介观与纳米尺度物理 · 物理学 2009-11-10 N. K. Kuzmenko , V. M. Mikhajlov
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