A Tight-binding Study of Surface Magnetic Anisotropy of the Co (0001) and Its Perturbation by Cu and CO
1.
SYSNO ASEP
0181734
Druh ASEP
J - Článek v odborném periodiku
Zařazení RIV
J - Článek v odborném periodiku
Poddruh J
Ostatní články
Název
A Tight-binding Study of Surface Magnetic Anisotropy of the Co (0001) and Its Perturbation by Cu and CO
Tvůrce(i)
Pick, Štěpán (UFCH-W)
Zdroj.dok.
Solid State Communications. - : Elsevier
- ISSN 0038-1098
Roč. 127, - (2003), s. 531-534
Poč.str.
4 s.
Jazyk dok.
eng - angličtina
Země vyd.
GB - Velká Británie
Klíč. slova
magnetic films and multilayers ; spin-orbit effects ; magnetic anisotropy
Vědní obor RIV
CF - Fyzikální chemie a teoretická chemie
CEZ
AV0Z4040901 - UFCH-W
Anotace
Recent experiments show that on rather thick Co films, deposition of Cu or adsorption of CO or C can switch the magnetization direction along the surface normal. We present semi-empirical self-consistent tight-binding calculations for a semi-infinite hcp Co(0001) crystal. It appears that the magnetic anisotropy-energy contribution from the surface layer prefers the in-plane alignment of magnetic moments. Various surface perturbations (Cu deposition or CO adsorption, artificial suppression of surface magnetization), however, reduce this contribution considerably or even change the sign of the electronic part of the magnetic anisotropy-energy, making thus conditions for perpendicular magnetization more favourable.
