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相关论文: Spin polarization in a two-dimensional electron ga…

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Spin-orbit coupling in semiconductors relates the spin of an electron to its momentum and provides a pathway for electrically initializing and manipulating electron spins for applications in spintronics and spin-based quantum information…

介观与纳米尺度物理 · 物理学 2015-06-25 V. Sih , R. C. Myers , Y. K. Kato , W. H. Lau , A. C. Gossard , D. D. Awschalom

We measure thermodynamic magnetization of a low-disordered, strongly correlated two-dimensional electron system in silicon. Pauli spin susceptibility is observed to grow critically at low electron densities - behavior that is characteristic…

In this letter we study finite temperature properties of spin-1/2 interacting bosons with spin-orbit coupling in two dimensions. When the ground state has stripe order, we show that thermal fluctuations will first melt the stripe order and…

量子气体 · 物理学 2011-08-30 Chao-Ming Jian , Hui Zhai

Tunnelling density of states in the vicinity of Fermi level of a two-dimensional electron gas subjected to an external parallel and zeroth magnetic field is calculated. It reveals a pseudo-gap recently observed in the experiments. The gap…

强关联电子 · 物理学 2015-06-24 V. Vyurkov , A. Vetrov , V. Ryzhii

We study the spin polarization induced by a current flow in clean two dimensional electron gases with Rashba spin-orbit coupling. This geometric effect originates from special properties of the electron's scattering at the edges of the…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Reynoso , Gonzalo Usaj , C. A. Balseiro

It is shown that in organic semiconductors where organic magnetoresistance (OMAR) is observed, the exchange interaction between electrons and holes localized at different molecules leads to dynamic spin polarization in the direction of the…

无序系统与神经网络 · 物理学 2022-04-06 A. V. Shumilin

The spin susceptibility of a two-dimensional electron system is calculated by determining the spin-polarization dependence of the ground-state energy within the self-consistent mean-field theory of Singwi et al. (STLS). Results are…

强关联电子 · 物理学 2011-06-03 R. K. Moudgil , Krishan Kumar , Gaetano Senatore

We consider the problem of spin relaxation in a two-dimensional electron gas (2DEG) in a perpendicular magnetic field. We assume that the spin relaxation is induced by the Rashba spin-orbit (SO) interaction, which appears due to the…

介观与纳米尺度物理 · 物理学 2009-11-10 A. A. Burkov , Leon Balents

The relationship between magnetic order and ferroelectric properties has been investigated for MnWO$_4$ with long-wavelength magnetic structure. Spontaneous electric polarization is observed in an elliptical spiral spin phase. The…

强关联电子 · 物理学 2009-11-11 K. Taniguchi , N. Abe , T. Takenobu , Y. Iwasa , T. Arima

We investigate mesoscopic fluctuations in the spin polarization generated by a static electric field and by Rashba spin-orbit interaction in a disordered 2D electron gas. In a diagrammatic approach we find that the out-of-plane polarization…

介观与纳米尺度物理 · 物理学 2009-12-08 Mathias Duckheim , Daniel Loss

We investigate the spin-dependent transport properties of a two-dimensional electron gas formed at oxides' interface in the presence of a magnetic field. We consider several scenarios for the oxides' properties, including oxides with…

介观与纳米尺度物理 · 物理学 2015-05-20 Chenglong Jia , Jamal Berakdar

Magnetoelectric properties of a coupled spin-electron model on a doubly decorated square lattice in an external electric field applied along the crystallographic axis [11] are rigorously examined with the help of generalized…

强关联电子 · 物理学 2018-12-26 Hana Čenčariková , Jozef Strečka

Phases of matter are conventionally characterized by order parameters describing the type and degree of order in a system. For example, crystals consist of spatially ordered arrays of atoms, an order that is lost as the crystal melts. Like-…

量子气体 · 物理学 2023-07-20 D. L. Campbell , R. M. Price , A. Putra , A. Valdés-Curiel , D. Trypogeorgos , I. B. Spielman

An interacting electron liquid in two (2D) and three (3D) dimensions may undergo a paramagnetic-to-ferromagnetic quantum spin polarization transition at zero applied magnetic field, driven entirely by exchange interactions, as the system…

统计力学 · 物理学 2021-09-15 DinhDuy Vu , Sankar Das Sarma

It has been shown experimentally a long time ago that the magnetic ordering causes an anomalous behavior of the electron resistivity in ferromagnetic crystals. Phenomenological explanations based on the interaction between itinerant…

材料科学 · 物理学 2009-11-13 K. Akabli , H. T. Diep

Focusing on the efficient probe and manipulation of single-particle spin states, we investigate the coupled spin and orbital dynamics of a spin 1/2 particle in a harmonic potential subject to ultrastrong spin-orbit interaction and external…

介观与纳米尺度物理 · 物理学 2014-01-21 C. Echeverria-Arrondo , E. Ya. Sherman

In zero magnetic field, conductance measurements of clean one-dimensional (1D) constrictions defined in GaAs/AlGaAs heterostructures show twenty-six quantized ballistic plateaux, as well as a structure close to $0.7(2e^2/h)$. In an in-plane…

凝聚态物理 · 物理学 2009-10-28 K. J. Thomas , J. T. Nicholls , M. Y. Simmons , M. Pepper , D. R. Mace , D. A. Ritchie

The orientation of the local electron spin quantization axis in momentum space is identified as the most significant physical variable in determining the states of a two-dimensional electron liquid in the presence of Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Chesi , G. Simion , G. F. Giuliani

We theoretically establish the mean-field phase diagram of a homogeneous spin-$1$, spin-orbit coupled Bose gas as a function of the spin-dependent interaction parameter, the Raman coupling strength and the quadratic Zeeman shift. We find…

量子气体 · 物理学 2015-02-18 Stefan S. Natu , Xiaopeng Li , William S. Cole

As a fundamental property of the electron, the spin plays a decisive role in the electronic structure of matter from solids to molecules and atoms, e.g. causing magnetism. Yet, despite its importance, the spin dynamics of electrons released…