Original Articles |
|
|
|
|
Giant Magnetoresistance and Microstructure of Melt-Spun Cu70Co30 Ribbons |
SONG Xiao-ping1;S. W. Mahon;R. F. Cochrane;B. J. Hickey;M. A. Howson |
School of Materials and Department of Physics, University of Leeds, Leeds LS2 9JT, UK
1On leave from School of Materials, Xian Jiaotong University, Xian 710049
|
|
Cite this article: |
SONG Xiao-ping, S. W. Mahon, R. F. Cochrane et al 1997 Chin. Phys. Lett. 14 148-150 |
|
|
Abstract This paper reports an investigation on the giant magnetoresistance and microstructure evolution in melt-spun Cu70Co30alloy. The results show that the phase separation is inevitable in the course of quenching, leading to the formation of two types of fcc magnetic Co-rich particles but these do not appear to contribute to the magnetoresistance (MR). On annealing, a very fine distribution of Co-rich precipitates forms at temperatures above 573 K which are responsible for the high MR developed in this material.
|
Keywords:
81.40.Rs
81.30.Mh
|
|
Published: 01 February 1997
|
|
PACS: |
81.40.Rs
|
(Electrical and magnetic properties related to treatment conditions)
|
|
81.30.Mh
|
(Solid-phase precipitation)
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|