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Silicon hole quantum dots have been the subject of considerable attention thanks to their strong spin-orbit coupling enabling electrical control. The physics of silicon holes is qualitatively different from germanium holes and requires a…

介观与纳米尺度物理 · 物理学 2024-04-24 Zhanning Wang , Abhikbrata Sarkar , S. D. Liles , Andre Saraiva , A. S. Dzurak , A. R. Hamilton , Dimitrie Culcer

In this work, we study how the combination of rotation and a topological defect can influence the energy spectrum of a two dimensional electron gas in a strong perpendicular magnetic field. A deviation from the linear behavior of the energy…

介观与纳米尺度物理 · 物理学 2017-09-11 Julio Brandão , Cleverson Filgueiras , Moises Rojas , Fernando Moraes

The surface of a topological insulator hosts a very special form of a quasi-two dimensional metallic system when it is embedded in a topologically trivial medium like the vacuum. The electronic properties of this unusual 2D metal are…

介观与纳米尺度物理 · 物理学 2012-08-13 M. M. Vazifeh , M. Franz

Polariton polarization can be described in terms of a pseudospin which can be oriented along the $x,\,y,$ or $z$ axis, similarly to electron and hole spin. Unlike electrons and holes where time-reversal symmetry requires that the spin-orbit…

介观与纳米尺度物理 · 物理学 2016-02-24 Vincent Sacksteder , A. A. Pervishko , I. A. Shelykh

Spin accumulation is generated by injecting an unpolarized charge current into a channel of GaAs two-dimensional electron gas subject to an in-plane magnetic field, then measured in a non-local geometry. Unlike previous measurements that…

介观与纳米尺度物理 · 物理学 2015-05-19 H. Ebrahimnejad , Y. Ren , S. M. Frolov , I. Adagideli , J. A. Folk , W. Wegscheider

Investigations of molecular magnets are driven both by prospective applications in future storage technology or quantum computing as well as by fundamental questions. Nowadays numerical simulation techniques and computer capabilities make…

强关联电子 · 物理学 2009-10-08 J. Schnack

Spontaneous magnetization of a two-dimensional electron gas (2DEG) is discussed. It takes place for sufficiently high electron density (i.e. for a quantum fluid state) with $r_s<10$ which is quite beyond the condition of Wigner…

强关联电子 · 物理学 2007-05-23 V. Vyurkov , A. Vetrov

Larmor's theorem holds for magnetic systems that are invariant under spin rotation. In the presence of spin-orbit coupling this invariance is lost and Larmor's theorem is broken: for systems of interacting electrons, this gives rise to a…

介观与纳米尺度物理 · 物理学 2017-07-12 Shahrzad Karimi , Florent Baboux , Florent Perez , Carsten A. Ullrich , Grzegorz Karczewski , Tomasz Wojtowicz

We study hydrodynamic thermal transport in high-mobility two-dimensional electron systems placed in an in-plane magnetic field, and identify a new mechanism of thermal magnetotransport. This mechanism is caused by drag between the electron…

介观与纳米尺度物理 · 物理学 2024-12-17 Alex Levchenko , A. V. Andreev

To establish a correlation between the spin diffusion, the spin lifetime, and the electron density, we study, employing time-resolved magneto-optical Kerr effect microscopy, the spin polarization evolution in low-dimensional GaAs…

介观与纳米尺度物理 · 物理学 2022-08-17 S. Anghel , A. V. Poshakinskiy , K. Schiller , G. Yusa , T. Mano , T. Noda , M. Betz

The theoretical study considers chiral spin texture induced in a 2D electron gas (2DEG) by magnetic skyrmions. We calculate the electron gas spin density as a linear response to the exchange interaction between the 2DEG and the…

介观与纳米尺度物理 · 物理学 2020-04-22 L. A. Yung , K. S. Denisov , I. V. Rozhansky , N. S. Averkiev , E. Lahderanta

We consider spin-resolved cyclotron trajectories in a magnetic focusing device with quantum point source and drain contacts defined within the InSb two-dimensional electron gas and their mapping by the scanning gate microscopy. Besides the…

介观与纳米尺度物理 · 物理学 2018-10-17 Alina Mrenca-Kolasinska , Krzysztof Kolasinski , Bartłomiej Szafran

Chiral molecules are known to preferentially select electrons with a particular spin state, an effect termed chirality-induced spin selectivity (CISS). In this work, the transient CISS dynamics in a chiral molecule are investigated through…

介观与纳米尺度物理 · 物理学 2025-11-03 Riley Stuermer , Collin VanEssen , Jacob Byers , Keith Ferrer , Prasad Gudem , Diego Kienle , Jonas Fransson , Mani Vaidyanathan

Everything gravitates and they do so through the energy-momentum tensor (EMT). However, there is no consensus on how to define the EMT of a hadron, e.g. the proton, the fundamental building blocks of the visible world. In this work, we show…

高能物理 - 唯象学 · 物理学 2024-05-14 Yang Li , Qun Wang , James P. Vary

The correlation kinetic equation approach is developed that allows describing spin correlations in a material with hopping transport. The quantum nature of spin is taken into account. The approach is applied to the problem of the bipolaron…

无序系统与神经网络 · 物理学 2020-04-15 A. V. Shumilin

This paper examines the properties of the self-energy operator in lattice-matched semiconductor heterostructures, focusing on nonanalytic behavior at small values of the crystal momentum, which gives rise to long-range Coulomb potentials. A…

材料科学 · 物理学 2007-05-23 Bradley A. Foreman

A new formulation of the plasma resistivity that arises from the collisional momentum-transfer rate between electrons and ions is presented. The resistivity computed herein is shown to depend not only on the temperature and density but also…

等离子体物理 · 物理学 2017-11-21 Manasvi Lingam , Eero Hirvijoki , David Pfefferlé , Luca Comisso , Amitava Bhattacharjee

We consider determination of spin-orbit (SO) coupling constants for the two-dimensional electron gas from measurements of electric properties in rotated in-plane magnetic field. %Due to the interplay Due to the SO coupling the electron…

介观与纳米尺度物理 · 物理学 2016-10-05 K. Kolasiński , H. Sellier , B. Szafran

We extend a microscopic theory of polarization and magnetization to include the spin degree of freedom of the electrons, introducing a general spin orbit coupling and Zeeman interaction term in the Hamiltonian. At finite frequencies and…

介观与纳米尺度物理 · 物理学 2023-07-11 Alistair H. Duff , J. E. Sipe

Low-energy properties of the homogeneous electron gas in one dimension are completely described by the group velocities of its charge (plasmon) and spin collective excitations. Because of the long range of the electron-electron interaction,…

介观与纳米尺度物理 · 物理学 2015-06-24 C. E. Creffield , Wolfgang Häusler , A. H. MacDonald