This title appears in the Scientific Report :
2002
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.65.241306 in citations.
Please use the identifier: http://hdl.handle.net/2128/1546 in citations.
Ballistic spin injection from Fe(001) into ZnSe and GaAs
Ballistic spin injection from Fe(001) into ZnSe and GaAs
We consider the spin injection from Fe into ZnSe and GaAs in the ballistic limit. By means of the ab initio screened Korringa-Kohn-Rostoker method we calculate the ground-state properties of epitaxial Fe\ZnSe(001) and Fe\GaAs(001) heterostructures. Three injection processes are considered: injection...
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Personal Name(s): | Wunnicke, O. |
---|---|
Mavropoulos, Ph. / Zeller, R. / Dederichs, P. H. / Grundler, D. | |
Contributing Institute: |
Theorie III; IFF-TH-III |
Published in: | Physical Review B Physical review / B, 65 65 (2002 2002) 24 24, S. 241306 241306 |
Imprint: |
College Park, Md.
APS
2002
|
Physical Description: |
241306 |
DOI: |
10.1103/PhysRevB.65.241306 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review B
65 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1546 in citations.
We consider the spin injection from Fe into ZnSe and GaAs in the ballistic limit. By means of the ab initio screened Korringa-Kohn-Rostoker method we calculate the ground-state properties of epitaxial Fe\ZnSe(001) and Fe\GaAs(001) heterostructures. Three injection processes are considered: injection of hot electrons and injection of "thermal" electrons with and without an interface barrier. The calculation of the conductance by the Landauer formula shows that these interfaces act like a nearly ideal spin filter, with spin polarization as high as 99%. This can be traced back to the symmetry of the band structure of Fe for normal incidence. |