GIANT MAGNETORESISTANCE IN HETEROGENEOUS CU-CO ALLOYS

被引:1599
作者
BERKOWITZ, AE
MITCHELL, JR
CAREY, MJ
YOUNG, AP
ZHANG, S
SPADA, FE
PARKER, FT
HUTTEN, A
THOMAS, G
机构
[1] UNIV CALIF SAN DIEGO,CTR MAGNET RECORDING RES,LA JOLLA,CA 92093
[2] LAWRENCE BERKELEY LAB,NATL CTR ELECTRON MICROSCOPY,BERKELEY,CA 94720
[3] LAWRENCE BERKELEY LAB,DEPT MAT SCI & MINERAL ENGN,BERKELEY,CA 94720
[4] NYU,DEPT PHYS,NEW YORK,NY 10003
关键词
D O I
10.1103/PhysRevLett.68.3745
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have observed giant magnetoresistance in heterogeneous thin film Cu-Co alloys consisting of ultrafine Co-rich precipitate particles in a Cu-rich matrix. The magnetoresistance scales inversely with the average particle diameter. This behavior is modeled by including spin-dependent scattering at the interfaces between the particles and the matrix, as well as the spin-dependent scattering in the Co-rich particles.
引用
收藏
页码:3745 / 3748
页数:4
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