Electronic and magnetic structures in slab models including Al/Co and O/Cointerfaces

Citation
M. Ichimura et al., Electronic and magnetic structures in slab models including Al/Co and O/Cointerfaces, JPN J A P 1, 40(7), 2001, pp. 4528-4532
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Volume
40
Issue
7
Year of publication
2001
Pages
4528 - 4532
Database
ISI
SICI code
0021-4922(200107)40:7<4528:EAMSIS>2.0.ZU;2-S
Abstract
On the basis of the density-functional theory, we numerically calculated th e interfacial magnetism of slab models including Al/Co and O/Co interfaces. We obtained the local magnetic moments and spin polarizations for various types of models. We found that the interfacial Al layers exhibit positive s pin polarizaition in specific atomic arrangements, such as O/Al/Co. The sig n is consistent with the experimental result of the ferromagnet/insulator/s uperconductor junction. This result suggests that in the junction Co/Al2O3/ Co, the tunneling of s-character electrons in Al is favored to that of d-ch aracter electrons in Co.