Reversed spin polarization at the Co(001)-HfO2(001) interface

Authors
de Boer, PK de Wijs, GA de Groot, RA
Citation
Pk. De Boer et al., Reversed spin polarization at the Co(001)-HfO2(001) interface, PHYS REV B, 58(23), 1998, pp. 15422-15425
Citations number
28
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
58
Issue
23
Year of publication
1998
Pages
15422 - 15425
Database
ISI
SICI code
0163-1829(199812)58:23<15422:RSPATC>2.0.ZU;2-A
Abstract
Ab initio electronic-structure calculations on the Co(001)-HfO2(001) interf ace are reported. The spin polarization of conduction electrons is positive at the interface, i.e., it is reversed with respect to the spin polarizati on in bulk Co. The electronic structure is very sensitive to the interface structure; without atomic relaxations the reversed spin polarization is not found. The possible relation with spin-polarized tunneling and magnetoresi stance is discussed. [S0163-1829(98)08448-3].