Aging effects on microstructure and GMR in Au-Co and Au-Co-X(X=Cu,Ni,Fe) bulk alloys

Authors
Lee, CG Kim, SH Lee, DH Fukamichi, K
Citation
Cg. Lee et al., Aging effects on microstructure and GMR in Au-Co and Au-Co-X(X=Cu,Ni,Fe) bulk alloys, IEEE MAGNET, 35(5), 1999, pp. 2856-2858
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
5
Year of publication
1999
Part
1
Pages
2856 - 2858
Database
ISI
SICI code
0018-9464(199909)35:5<2856:AEOMAG>2.0.ZU;2-L
Abstract
Aging effects on the microstructure and the GMR in Au-Co and Au-Co-X(X=Fe, NI and Cu) bulk granular alloys have been investigated. The TEM observation shows that Co particles are a plate-like type and grew with the aging time , The optimum size for the maximum MR ratio is a length of about 10nm and a thickness of 0.6nm. In Au-Co-X(X=Cu, Ni and Fe) bulk alloys, it was confir med that the maximum valve of the MR ratio is about 3.5% at 10 kOe for Au80 Co15Fe5 bulk alloy aged at 300 degrees C for 1 hr.