SUPERPARAMAGNETISM AND ANTIFERROMAGNETIC COUPLING IN GIANT MAGNETORESISTIVE NANOCRYSTALLIZED MELT-SPUN CU92CO8 RIBBONS

Authors
MADURGA V ORTEGA RJ KORENIVSKI VN MEDELIUS H RAO KV
Citation
V. Madurga et al., SUPERPARAMAGNETISM AND ANTIFERROMAGNETIC COUPLING IN GIANT MAGNETORESISTIVE NANOCRYSTALLIZED MELT-SPUN CU92CO8 RIBBONS, Journal of magnetism and magnetic materials, 144, 1995, pp. 465-466
Citations number
10
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
144
Year of publication
1995
Part
1
Pages
465 - 466
Database
ISI
SICI code
0304-8853(1995)144:<465:SAACIG>2.0.ZU;2-K
Abstract
Melt-spun ribbons of Cu92Co8 are found to exhibit giant magnetoresista nce with a maximum of 17% at 5 K. Magnetization curves at different te mperatures indicate that GMR is due to superparamagnetism of the nanoc rystallized fee Go-rich clusters, and give negative values of the temp erature of order Theta in a Langevin law fit.