Magnetoimpedance and magnetic properties of Co72Fe5Ni10Cr5Si7B3 amorphous ribbons in different states

被引：3
|
作者：
Chlenova, A. A. [1 ]
Stepanova, E. A. [1 ]
Golubeva, E. V. [1 ]
Lotfollahi, Z. [2 ,3 ]
机构：
[1] Ural Fed Univ, Lab Magnet Sensor, Lenin Ave 51, Ekaterinburg 620083, Russia
[2] Univ Birjand, A78, Birjand, Iran
[3] Univ Basque Country UPV EHU, Leioa 48940, Spain
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2017年 / 440卷
关键词：
Amorphous ribbons; Magnetic properties; Magnetoimpedance effect; Magnetic anisotropy; Structural relaxation;
D O I：
10.1016/j.jmmm.2016.12.148
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
CoFeNiCrSiB amorphous ribbons have been prepared by rapid quenching and subjected to the post preparation heat treatments in air. Structure, magnetic properties and giant magnetoimpedance (MI) characteristics were investigated. Short annealing of the sample at 380 degrees for 4 min leads to a useful structural relaxation and the highest MI ratio Delta Z/Z = 350% for the total impedance. In as prepared state "two- peak" MI field dependences were well correlating with effective magnetic anisotropy features. Post preparation treatment resulted in clear transformation into "one- peak" shaped MI curve typical for the ribbons with longitudinal effective anisotropy. Corresponding decrease of the field sensitivity by the order of magnitude as a result of short heat treatments in air shows their importance.
引用
收藏
页码：210 / 212
页数：3
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