Direkt zum Inhalt

Owner only: item control page
Kreuzer, Sebastian ; Moser, Jürgen ; Wegscheider, Werner ; Weiss, Dieter ; Bichler, Max ; Schuh, Dieter

Spin polarized tunneling through single-crystal GaAs(001) barriers

Kreuzer, Sebastian, Moser, Jürgen, Wegscheider, Werner, Weiss, Dieter , Bichler, Max and Schuh, Dieter (2002) Spin polarized tunneling through single-crystal GaAs(001) barriers. Applied Physics Letters 80 (1-4), pp. 4582-4584.

Date of publication of this fulltext: 07 Dec 2009 13:05
Article
DOI to cite this document: 10.5283/epub.11303


Abstract

We investigate spin-dependent transport through an epitaxial GaAs(001) barrier sandwiched between polycrystalline iron films. Electron transport through the barrier is dominated by quantum mechanical tunneling, demonstrated by a nonlinear I-V characteristic, an exponential dependence of the tunneling current on the barrier thickness and the temperature dependence of the current. Though small a ...

We investigate spin-dependent transport through an epitaxial GaAs(001) barrier sandwiched between polycrystalline iron films. Electron transport through the barrier is dominated by quantum mechanical tunneling, demonstrated by a nonlinear I-V characteristic, an exponential dependence of the tunneling current on the barrier thickness and the temperature dependence of the current. Though small a clear tunneling magnetoresistance effect proves spin-dependent transport through the Fe-GaAs interface. The small size of the effect and the high-field magnetoresistance suggest that spin-flip scattering plays a decisive role in transport. (C) 2002 American Institute of Physics.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitleApplied Physics Letters
Publisher:AMER INST PHYSICS
Place of Publication:MELVILLE
Volume:80
Number of Issue or Book Chapter:1-4
Page Range:pp. 4582-4584
Date17 June 2002
InstitutionsPhysics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Identification Number
ValueType
10.1063/1.1486044DOI
Related URLs
URLURL Type
http://link.aip.org/link/?APPLAB/80/4582/1Publisher
KeywordsINJECTION; JUNCTIONS; FILMS; FE;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedUnknown
Created at the University of RegensburgUnknown
Item ID11303

Export bibliographical data

Owner only: item control page

nach oben