ANTIFERROMAGNETIC COUPLING IN (111)-ORIENTED CO PT SUPERLATTICES/

Authors
LEDANG K VEILLET P CHAPPERT C FARROW RFC MARKS RF WELLER D CEBOLLADA A
Citation
K. Ledang et al., ANTIFERROMAGNETIC COUPLING IN (111)-ORIENTED CO PT SUPERLATTICES/, Physical review. B, Condensed matter, 50(1), 1994, pp. 200-204
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
1
Year of publication
1994
Pages
200 - 204
Database
ISI
SICI code
0163-1829(1994)50:1<200:ACI(CP>2.0.ZU;2-S
Abstract
Nuclear magnetic resonance (NMR) and low-temperature magnetization mea surements are used to demonstrate antiferromagnetic (AF) coupling in m olecular beam epitaxy grown (111)-oriented Co/Pt superlattices. Drasti c changes in the NMR spin-echo spectra as a function of the in-plane d c magnetic-field strength provide conclusive evidence of AF interlayer coupling in these structures, consisting of 35- and 52-angstrom Co an d 18-angstrom Pt bilayers. The structure of the Co films is mainly hcp (70%) and the coupling energy per unit area, as determined from in-pl ane magnetization loops is found to range up to 1 erg/cm2.