| Published Version Download ( PDF | 1MB) | License: Allianz- bzw. Nationallizenz |
Bias dependence of spin injection into GaAs from Fe, FeCo, and (Ga,Mn)As contacts
Endres, Bernhard, Hoffmann, Frank, Wolf, Christian, Einwanger, Andreas, Utz, Martin, Schuh, Dieter, Woltersdorf, Georg
, Ciorga, Mariusz, Weiss, Dieter , 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.
Date of publication of this fulltext: 30 Mar 2011 06:06
Article
DOI to cite this document: 10.5283/epub.20305
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 ...
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 changes sign when the injected current is reversed. Multiple sign reversals as a function of bias voltage as reported previously for Fe injectors are not observed with (Ga,Mn) As and Fe contacts grown on clean n(++)-GaAs in agreement with earlier results for an epitaxial FeCo injector. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553932]
Alternative links to fulltext
Involved Institutions
Details
| Item type | Article | ||||||
| Journal or Publication Title | Journal of Applied Physics | ||||||
| Publisher: | AMER INST PHYSICS | ||||||
|---|---|---|---|---|---|---|---|
| Place of Publication: | MELVILLE | ||||||
| Volume: | 109 | ||||||
| Page Range: | 07C505 | ||||||
| Date | 22 March 2011 | ||||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Chair Professor Back > Group Christian Back Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss | ||||||
| Identification Number |
| ||||||
| Classification |
| ||||||
| Keywords | SEMICONDUCTOR; | ||||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||||
| Status | Published | ||||||
| Refereed | Yes, this version has been refereed | ||||||
| Created at the University of Regensburg | Yes | ||||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-203055 | ||||||
| Item ID | 20305 |
Export bibliographical data
Owner only: item control page
Download Statistics
Download Statistics