MAGNETORESISTANCE IN EPITAXIAL FE-CR(001) SUPERLATTICES GROWN ON MGO(001) AND SAPPHIRE(1(1)OVER-BAR02) SUBSTRATES

Authors
KAMIJO A YUMOTO S
Citation
A. Kamijo et S. Yumoto, MAGNETORESISTANCE IN EPITAXIAL FE-CR(001) SUPERLATTICES GROWN ON MGO(001) AND SAPPHIRE(1(1)OVER-BAR02) SUBSTRATES, Materials science & engineering. B, Solid-state materials for advanced technology, 31(1-2), 1995, pp. 169-176
Citations number
31
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Materials science & engineering. B, Solid-state materials for advanced technology → ACNP
ISSN journal
09215107
Volume
31
Issue
1-2
Year of publication
1995
Pages
169 - 176
Database
ISI
SICI code
0921-5107(1995)31:1-2<169:MIEFSG>2.0.ZU;2-5
Abstract
To clarify the effect of the substrate on the giant magnetoresistance of epitaxial Fe-Cr(001) superlattices, Cr-thickness dependence of both magnetoresistance (MR) and magnetization are studied using the same s uperlattice structure grown on different substrates, MgO(001) or Al2O3 (1102). With varying thickness of Cr layer, the MR ratio undergoes an oscillatory behavior. At the first peak (similar to 1 nm Cr), the supe rlattice on sapphire shows a larger MR ratio and a larger saturation f ield than that on MgO. At the second peak (similar to 1.7 nm Cr), howe ver, a larger MR ratio is observed for the superlattice on MgO.