CORRELATION BETWEEN THE STRUCTURAL AND TRANSPORT-PROPERTIES OF GRANULAR COAG SYSTEMS PREPARED BY MBE

Authors
AZIZI A THOMPSON SM OUNADJELA K GREGG J VENNEGUES P DINIA A ARABSKI J FERMON C
Citation
A. Azizi et al., CORRELATION BETWEEN THE STRUCTURAL AND TRANSPORT-PROPERTIES OF GRANULAR COAG SYSTEMS PREPARED BY MBE, Journal of magnetism and magnetic materials, 148(1-2), 1995, pp. 313-314
Citations number
7
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
148
Issue
1-2
Year of publication
1995
Pages
313 - 314
Database
ISI
SICI code
0304-8853(1995)148:1-2<313:CBTSAT>2.0.ZU;2-I
Abstract
We have studied the structural and magnetotransport properties of epit axial Co/Ag granular alloy films prepared by molecular beam epitaxy at different growth temperatures. The rapid decrease in the magnetoresis tance above 35% concentration at low temperature deposition is related to the presence of Co paramagnetic impurities within the Ag matrix, w hich has the effect of reducing the spin diffusion length by increased spin-flip scattering and indicates that the spin diffusion length in such granular systems is a determining length scale at the origin of t he magnetoresistance.