应力退火的Fe基纳米微晶带纵向驱动巨磁阻抗效应的研究  

STUDIES ON LONGITUDINALLY DRIVEN GIANT MAGNETO-IMPEDANCE EFFECT IN STRESS-ANNEALED Fe-BASED NANOCRYSTALLINE RIBBONS

作　　者：王宗篪 杨燮龙[1] 宫峰飞[1] 曾琅 陈国[1] 杨介信[1] 钱思明[1] 

机构地区：[1]华东师范大学物理系

出　　处：《功能材料与器件学报》2000年第1期25-29,共5页Journal of Functional Materials and Devices

摘　　要：测定了不同张应力退火生成的Fe73 Cu1Nb1.5 V2 Si13 .5 B9纳米微晶带在高频纵向驱动埸下的巨磁阻抗效应。从相位随外磁埸的变化规律中得出 ,与磁损耗相应的 μ”随外磁埸的变化是引起高频纵向驱动巨磁阻抗效应的重要原因。并由相位随外磁埸变化的最小值可以很容易地确定出材料的横向磁各向异性埸Hk 的大小 。Longitudinally driven giant magneto-impedance (LDGMI) effect of high frequency is measured for Fe 73 Cu 1Nb 1.5 V 2Si 13.5 B 9 nanocrystalline ribbons annealed under different tensile stress. It can be concluded from the field dependence of phase that imaginary part of permeability μ', which is corresponding to the magnetic losses, plays an important role in the high frequency LDGMI effect, and that the value of transverse magnetic anisotropy field H k can be easily determined by the minimum of the field dependence of phase. It provided a kind of new method to measure the magnetic anisotropy field.

关 键 词：纳米晶 纵向驱动 巨磁阻抗效应 应力退火 铁基 

分 类 号：TM271.2[一般工业技术—材料科学与工程]