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Bias dependence of spin injection into GaAs from Fe, FeCo, and (Ga,Mn)As contacts

Endres, Bernhard and Hoffmann, Frank and Wolf, Christian and Einwanger, Andreas and Utz, Martin and Schuh, Dieter and Woltersdorf, Georg and Ciorga, Mariusz and Weiss, Dieter and Back, Christian and Bayreuther, Günther (2011) Bias dependence of spin injection into GaAs from Fe, FeCo, and (Ga,Mn)As contacts. Journal of Applied Physics 109 (07C505).

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Other URL: http://link.aip.org/link/doi/10.1063/1.3553932


Abstract

Spin injection from Fe(001) and (Ga,Mn)As(001) into n-GaAs(001) was investigated using a method which provides two-dimensional cross-sectional images of the spin polarization in GaAs. While the distribution of the spin polarization below the injecting contact is nearly uniform for (Ga,Mn)As, a strong confinement near the contact edge is observed for Fe and FeCo. The spin polarization in GaAs ...

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Item Type:Article
Date:22 March 2011
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1063/1.3553932DOI
Classification:
NotationType
72.25.-bPACS
73.40.VzPACS
Keywords:cobalt alloys, electrical contacts, gallium compounds, III-V semiconductors, iron, iron alloys, spin polarised transport
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:30 Mar 2011 06:06
Last Modified:13 Mar 2014 17:56
Item ID:20305
Owner Only: item control page
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