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Transverse electron focusing in two-dimensional electron gases (2DEGs) with strong spin-orbit coupling is revisited. The transverse focusing is related to the transmission between two contacts at the edge of a 2DEG when a perpendicular…

介观与纳米尺度物理 · 物理学 2015-06-25 Andres A. Reynoso , Gonzalo Usaj , C. A. Balseiro

This article reviews spin-dependent transport of carriers in homogenous three-dimensional and two-dimensional semiconductors. We begin with a discussion of optical orientation of electron spins, which allows both the creation and detection…

介观与纳米尺度物理 · 物理学 2007-05-23 R. Winkler

We explore electrically injected, spin polarized transport in a ballistic two-dimensional electron gas. We augment the Buettiker-Landauer picture with a simple, but realistic model for spin-selective contacts to describe multimode…

介观与纳米尺度物理 · 物理学 2009-10-31 H. X. Tang , F. G. Monzon , Ron Lifshitz , M. C. Cross , M. L. Roukes

We demonstrate that the spin-polarized electron current can interact with a microwave electric field in a resonant manner. The spin-orbit interaction gives rise to an effective magnetic field proportional to the electric current. In the…

材料科学 · 物理学 2009-11-10 B. A. Glavin , K. W. Kim

We present experimental results and macrospin simulations of the switching characteristics of orthogonal spin-transfer devices incorporating an out-of-plane magnetized polarizing layer and an in-plane magnetized spin valve device at…

介观与纳米尺度物理 · 物理学 2017-11-30 Graham E. Rowlands , Colm A. Ryan , Li Ye , Laura Rehm , Daniele Pinna , Andrew D. Kent , Thomas A. Ohki

When probing nuclear spins in materials on the nanometer scale, random fluctuations of the spin polarization will exceed the mean Boltzmann polarization for sample volumes below about (100nm)^3. In this work, we use magnetic resonance force…

介观与纳米尺度物理 · 物理学 2008-01-14 C. L. Degen , M. Poggio , H. J. Mamin , D. Rugar

Here we propose an isotropic all electrical spin analyzer in a quantum ring with spin-orbit coupling by analytically and numerically modeling how the charge transmission rates depend on the polarization of the incident spin. The formalism…

介观与纳米尺度物理 · 物理学 2021-03-17 Shenglin Peng , Wenchen Luo , Jian Sun , Ai-Min Guo , Fangping Ouyang , Tapash Chakraborty

We develop an analytical method for the processing of electron spin resonance (ESR) spectra. The goal is to obtain the distributions of trapped carriers over both their degree of localization and their binding energy in semiconductor…

材料科学 · 物理学 2012-03-28 Andrey S. Mishchenko , Hiroyuki Matsui , Tatsuo Hasegawa

Spatiotemporal spin dynamics under spin-orbit interaction is investigated in a (001) GaAs two-dimensional electron gas using magneto-optical Kerr rotation microscopy. Spin polarized electrons are diffused away from the excited position,…

介观与纳米尺度物理 · 物理学 2021-01-20 Daisuke Iizasa , Asuka Aoki , Takahito Saito , Junsaku Nitta , Gian Salis , Makoto Kohda

Spin Polarized Low Energy Electron Microscopy is used as a spin dependent spectroscopic probe to study the spin dependent specular reflection of a polarized electron beam from two different magnetic thin film systems: Fe/W(110) and…

材料科学 · 物理学 2007-05-23 J. Graf , C. Jozwiak , A. K. Schmid , Z. Hussain , A. Lanzara

Coherent spin resonance methods, such as nuclear magnetic resonance and electron spin resonance spectroscopy, have led to spectrally highly sensitive, non-invasive quantum imaging techniques. Here, we propose a pump-probe spin resonance…

量子物理 · 物理学 2024-12-02 Philipp Haslinger , Stefan Nimmrichter , Dennis Rätzel

The manipulation of spin degree of freedom have been demonstrated in spin polarized electron plasma in a heterostructure by using exchange-interaction induced dynamic spin splitting rather than the Rashba and Dresselhaus types, as revealed…

介观与纳米尺度物理 · 物理学 2009-11-13 F. Zhang , H. Z. Zheng , Y. Ji , J. Liu , G. R. Li

Harnessing electron spin is crucial in developing energy-saving and high-speed devices for the next generation. In this scheme, visualizing spin-polarized electronic states aids in designing and developing new materials and devices.…

材料科学 · 物理学 2024-04-03 Koichiro Yaji , Shunsuke Tsuda

We describe a new table-top electrostatic storage ring concept for $30$ keV polarized ions at frozen spin condition. The device will ultimately be capable of measuring magnetic fields with a resolution of 10$^{-21}$ T with sub-mHz…

高能物理 - 实验 · 物理学 2023-05-03 Chiara Brandenstein , Stefan Stelzl , Erwin Gutsmiedl , Wolfgang Schott , Andreas Weiler , Peter Fierlinger

A theory of spin-polarized electron transport in ferromagnet/semiconductor heterostructures, based on a unified semiclassical description of ballistic and diffusive transport in semiconductor structures, is developed. The aim is to provide…

材料科学 · 物理学 2009-11-11 R. Lipperheide , U. Wille

Mm and sub-mm waves polarimetry is the new frontier of research in Cosmic Microwave Background and Interstellar Dust studies. Polarimeters working in the IR to MM range need to be operated at cryogenic temperatures, to limit the systematic…

天体物理仪器与方法 · 物理学 2012-04-09 Maria Salatino , Paolo de Bernardis , Silvia Masi

Circular dichroism spectroscopy is known to provide important insights into the interplay of different degrees of freedom in quantum materials, and yet spectroscopic study of the optoelectronic responses of quantum materials to structured…

Mesoscopic conductors are electronic systems of sizes in between nano- and micrometers, and often of reduced dimensionality. In the phase-coherent regime at low temperatures, the conductance of these devices is governed by quantum…

介观与纳米尺度物理 · 物理学 2008-03-27 Michael Wimmer , Matthias Scheid , Klaus Richter