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所属单位：[1]电子科技大学微电子与固体电子学院,四川成都610054

发表刊物：Piezoelectrics & Acoustooptics

关键字：spin valve; micro magnetic ; giant magnetoresistance ; recording medium

摘要：Optimizing the materials properties and structure parameters of giant magneto-resistance head are of key importance to application. Based on the physics computation model in this work, we firstly calculated the signal field and magnetization distribution in free layer using transmittance line model and micro-magnetic theory, and then we discussed the effect of size and magnetic parameters on the magnetic flux and signal field; finally, we put the head on a suitable front-end electric circuit which acts as a variation magneto-resistance, and analyzed the output voltage, harmonic signal and line range. The simulated results show that output signal has good linear characteristic with respect to the medium recording signal in a wide range of gap length （g1＋g2≤0.7）. The optimal value of sensing current should be selected between 10 mA and 50 mA.

文献类型：Journal article (JA)

卷号：28

期号：1

页面范围：106-108

ISSN号：1004-2474

是否译文：否

CN号：50-1091/TN