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High-field magnetoresistance of Fe/GaAs/Fe tunnel junctions

Zenger, Marcus and Moser, Jürgen and Wegscheider, Werner and Weiss, Dieter and Dietl, T. (2004) High-field magnetoresistance of Fe/GaAs/Fe tunnel junctions. Journal of Applied Physics 96 (14), pp. 2400-2402.

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Abstract

We investigate transport through 6–10 nm thin epitaxial GaAs(001) barriers sandwiched between polycrystalline iron films. Apart from a pronounced tunneling magnetoresistance effect at low magnetic fields, we observe a distinct negative magnetoresistance (MR) at low and a positive MR at higher temperatures. We show that the negative MR contribution is only observed for the ferromagnetic iron ...

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Item Type:Article
Date:15 August 2004
Institutions:Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
Identification Number:
ValueType
10.1063/1.1774255DOI
Related URLs:
URLURL Type
http://link.aip.org/link/?JAPIAU/96/2400/1Publisher
Classification:
NotationType
75.50.Pp; 73.61.Ey; 71.70.Ej; 75.47.-m; 73.50.Fq; 73.40.Sx; 72.20.MyPACS
Keywords:iron, gallium arsenide, III-V semiconductors, ferromagnetic materials, magnetic semiconductors, magnetic epitaxial layers, semiconductor epitaxial layers, tunnelling magnetoresistance, Zeeman effect, metal-semiconductor-metal structures
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Martin Kaiser
Deposited On:11 Jan 2010 13:21
Last Modified:13 Mar 2014 12:22
Item ID:11825
Owner Only: item control page

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