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Nonuniform current and spin accumulation in a 1 μm thick n-GaAs channel

Endres, Bernhard and Ciorga, Mariusz and Wagner, Robert and Ringer, Sebastian and Utz, Martin and Bougeard, Dominique and Weiss, Dieter and Back, Christian H. and Bayreuther, Günther (2012) Nonuniform current and spin accumulation in a 1 μm thick n-GaAs channel. Applied Physics Letters 100, p. 92405.

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Other URL: http://dx.doi.org/10.1063/1.3691175


Abstract

The spin accumulation in a n-GaAs channel produced by spin extraction into a (Ga,Mn)As contact is measured by cross-sectional imaging of the spin polarization in GaAs. The spin polarization is observed in a 1 μm thick n-GaAs channel with the maximum polarization near the contact edge opposite to the maximum current density. The one-dimensional model of electron drift and spin diffusion, ...

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Item Type:Article
Date:1 March 2012
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back
Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Dominique Bougeard
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1063/1.3691175 DOI
Classification:
NotationType
72.25.Dc, 75.30.Ds, 75.30.Wx, 75.40.Gb, 75.50.Pp, 75.78.CdPACS
Keywords:current density, gallium arsenide, Hanle effect, III-V semiconductors, numerical analysis, spin dynamics, spin polarised transport PACS
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Claudia Rahm
Deposited On:06 Mar 2012 07:14
Last Modified:13 Mar 2014 18:41
Item ID:23534
Owner Only: item control page

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