西北师范大学学报（自然科学版）Issue(5)：29-32,4.
热处理过程中Co基非晶丝的层间耦合作用对GMI效应的影响
Coupling interaction and GM I effect for Co-based amorphous microwires
摘要
Abstract
Co-based(Co69.20Fe4.16Si12.35B10.77Cr3.42Mo0.1)amorphous microwires with 40 μm in diameter and 10 μm in glass-coated thickness are prepared by Taylor method . Then , the glass coating layer is removed using diluted HF acid . The amorphous wires are annealed in open air or under H2 protection . The relationship between giant magneto-impedance effect and the annealing conditions is investigated . The results show that the GMI curves are asymmetric after annealing . GMI ratios firstly increase then decrease with inoreasing of the annealing temperature and time . The maximum of GMI sensitivity of 227% is obtained for the samples annealed at 673 K for 9 hours . The exchange coupling interaction between the oxide layer and crystalline core is responsible for the improvement of soft magnetic properties of the wires .关键词
钴基非晶丝/氧化/交换耦合作用/巨磁阻抗效应Key words
amorphous microwires/oxidation/exchange coupling/GMI effect分类
数理科学引用本文复制引用
刘仁生,张清,王江涛,袁立,赵振杰..热处理过程中Co基非晶丝的层间耦合作用对GMI效应的影响[J].西北师范大学学报（自然科学版）,2014,(5):29-32,4.基金项目
国家自然科学基金资助项目 （）
