Giant - magnetoresistance phenomenon has very important and wide application foreground . it becomes a hotspot in the area of condensed matter physics study 巨磁电阻效应具有十分重要和广阔的应用前景，是凝聚体物理研究领域中的一个热点。
Gmr material is a new kind of magnetoresistance materials . it ' s very valuable in sensor applications with its high sensitivity and good temperature property Gmr巨磁阻材料是一种新型的磁阻材料，它的灵敏度很高，温度系数较小，易于集成。
The research work reported in this thesis is the first time application of the nonlinear response kubo formula in the calculation of the giant - magnetoresistance of practical devices 本文报导的工作是第一次将非线性响应的kubo公式应用于实际器件的巨磁电阻计算。
More recently , the perovskite manganite compounds , a1 - xbxmno3 have received much attention because of their gigantic magnetoresistance ( gmr ) and charge ordering properties 近几年来，这类钙钛矿型结构的氧化物材料因为其具有的巨磁电阻效应受到了更多的关注。
For instance , even the earliest computer hard drives used magnetoresistance ? a change in electrical resistance caused by a magnetic field ? to read data stored in magnetic domains 譬如说，即使最早的电脑硬碟，也是利用磁阻（即用磁场来改变电阻大小）来读取储存在磁域上的资料。
3 ) some low graphitization degree samples " magnetoresistance is 0 when measure temperature is enough high . 3 ) in low intensity of magnetic field , the curve of / 0 - b is parabola 建议对碳/碳复合材料磁电阻的测量参数是：温度区间为70 100k ；磁场强度选择区间为1 1 . 2t 。
The calculation results of the thesis author show that for multi - layer sandwiches the giant - magnetoresistance becomes larger when the bias increases . it becomes smaller when the bias is negative 论文作者的计算结果说明多层膜结构的偏压u增加时巨磁电阻增大，加负压时巨磁电阻减小。
Firstly , the paper introduces the theory of the insb magnetosensitive characteristics . and then analyzes in detail about the running principle of the insb magnetoresistance photoelectric sensor 本文首先介绍了insb磁敏效应的基本原理，在此基础上对insb磁阻型光电传感器的工作原理进行了分析。
On one hand , in grain regions of films , the strong inter - duster interaction , mentioned as mean field , leads to the colossal magnetoresistance effect ( cmr ) 与此同时，薄膜的拓扑形态分为颗粒区域和颗粒边界区域。在颗粒区域内，小聚集体之间具有强关联耦合作用，是这种非均匀体系庞磁阻效应的成因。
The authors deduced the analytic formula for the calculation of the giant - magnetoresistance of multi - layer sandwich structure and spin - valve structure , and also discussed what the calculation results implied 论文作者得出了多层膜三明治结构和自旋阀结构的巨磁电阻效应的解析公式，并分析了结果的意义。
