摘要
对三明治结构的Co/Cu/Co 和Co/Cu92 Mn8/Co 系列的巨磁电阻效应进行了研究,发现两者的巨磁电阻均随中介层厚度作周期性振荡,但是接近反相.作为与Co/Cu/Co 系统的比较,发现若在Cu 基中稀释Mn 原子,巨磁电阻随外磁场变化的曲线会有非常大的改变,同时饱和场或开关场也有较大的下降,这意味着有可能为Co/Cu 金属多层膜的巨磁电阻的实用化研究开辟出一条新的思路.
The giant magnetoresistance (GMR) effects in sandwiched Co/Cu/Co and Co/CuMn/Co structures have been investigated.The GMR oscillates with the spacer thickness for both cases,but nearly antiphased.With diluted Mn atoms in the Cu spacer,the GMR curve as a function of the magnetic field changes a lot,and the saturation/switching field for GMR can be reduced greatly compared with that in Co/Cu/Co systems.This may suggest one way to obtain a highly sensitive GMR.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第S1期144-150,共7页
Acta Physica Sinica
基金
国家自然科学基金!( 批准号:19674012)
上海市科技发展基金!( 批准号:98ZA14014)
上海市应用物理中心资助