The electrical and magnetic response of yoke-type read heads based on a magnetic tunnel junction

被引：16

作者：

Coehoorn, R ^{[1
]}

Cumpson, SR ^{[1
]}

Ruigrok, JJM ^{[1
]}

Hidding, P ^{[1
]}

机构：

[1] Philips Res Labs, NL-5656 AA Eindhoven, Netherlands

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 05期

关键词：

giant magnetoresistance; tunnel magnetoresistance; magnetic head modelling; signal to noise ratio;

D O I：

10.1109/20.800898

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Based on model calculations a comparison is made between yoke-type read heads containing a tunnel junction magnetoresistive element (TMRE) and containing a giant magnetoresistive element (GMRE). For typical head design parameters, TMR-based heads are 3-5 times more flux-efficient than GMR-based heads. However, for approximately 1 x 1 mu m(2) elements, the SNR of TMRE-based heads is not advantageous as long as the junction's tunnel resistance is not drastically reduced below R = 1 k Omega.

引用

页码：2586 / 2588

页数：3

共 9 条

[1]

JAAP JM, 1993, MAGN REC C TMRC

[2] Bias voltage and temperature dependence of magnetotunneling effect [J].