Effects of interface geometry on spin injection

Spin-injection efficiency may be affected by interface geometry and it was investigated theoretically by considering a nonmagnetic (NM) sphere embedded in a ferromagnetic (FM) host. When spin-polarized current is injected into the NM sphere from the FM host, it is found that spinsplitting of the ele...

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Vydáno v:Journal of the Korean Physical Society Ročník 71; číslo 9; s. 587 - 590
Hlavní autor: Lee, B. C.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Seoul The Korean Physical Society 01.11.2017
Springer Nature B.V
한국물리학회
Témata:
Electrochemical potential
Ferromagnetism
Mathematical and Computational Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Spin valves
Theoretical
물리학
Spin polarization
Spin injection
Nonlocal spin valve
ISSN:0374-4884, 1976-8524
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Popis
Shrnutí:Spin-injection efficiency may be affected by interface geometry and it was investigated theoretically by considering a nonmagnetic (NM) sphere embedded in a ferromagnetic (FM) host. When spin-polarized current is injected into the NM sphere from the FM host, it is found that spinsplitting of the electrochemical potential is enhanced at the interface while the spin polarization of the electrical current is reduced compared with the flat interface. In the Co/Cu and the Py/Cu systems, the values are different from those of the flat interface even when the sphere radius is 3 μ m. Attachment of another NM electrode to the NM sphere changes the spin-splitting of the electrochemical potential, which may be critical for the nonlocal spin signal in the lateral spin valve.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:0374-4884
1976-8524
DOI:10.3938/jkps.71.587