MAGNETIC AND MAGNETOOPTIC PROPERTIES OF THICK FACE-CENTERED-CUBIC CO SINGLE-CRYSTAL FILMS

Authors
SUZUKI T WELLER D CHANG CA SAVOY R HUANG T GURNEY BA SPERIOSU V
Citation
T. Suzuki et al., MAGNETIC AND MAGNETOOPTIC PROPERTIES OF THICK FACE-CENTERED-CUBIC CO SINGLE-CRYSTAL FILMS, Applied physics letters, 64(20), 1994, pp. 2736-2738
Citations number
17
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
20
Year of publication
1994
Pages
2736 - 2738
Database
ISI
SICI code
0003-6951(1994)64:20<2736:MAMPOT>2.0.ZU;2-K
Abstract
The present letter describes for the first time the magnetic and magne to-optical properties of thick fcc cobalt single-crystal films (congru ent-to 1000-angstrom thickness). The magneto-crystalline anisotropy co nstants K1 and K2 are about -7.2X10(5) erg/cc and 2X10(5) erg/cc at 77 K, respectively. Both decrease in magnitude with increasing temperatu re in a range from 77 K to about 450 K. The easy axis is found to be [ 111]. The polar Kerr angle for the fcc phase is much larger than that of the hcp phase by 0.1-degrees-0.2-degrees in a photon energy range f rom about 1 to 5 eV.