High-Sensitive Sensing Elements Based on Spin Valves with Antiferromagnetic Interlayer Coupling

被引：16

作者：

Naumova, L. I. ^{[1
,2
]}

Milyaev, M. A. ^{[1
,2
]}

Zavornitsin, R. S. ^{[1
]}

Pavlova, A. Yu. ^{[1
]}

Maksimova, I. K. ^{[1
]}

Krinitsina, T. P. ^{[1
]}

Chernyshova, T. A. ^{[1
,2
]}

Proglyado, V. V. ^{[1
]}

Ustinov, V. V. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Ural Branch, Mikheev Inst Met Phys, Ekaterinburg 620108, Russia

[2] Ural Fed Univ, Inst Nat Sci & Math, Ekaterinburg 620002, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2019年 / 120卷 / 07期

基金：

俄罗斯基础研究基金会;

关键词：

spin valve; interlayer coupling; sensor element; meander; spin-flop state; magnetoresistive sensitivity; MAGNETORESISTIVE SENSITIVITY; SYNTHETIC ANTIFERROMAGNET; GIANT MAGNETORESISTANCE; SUPERLATTICES; ANISOTROPY; LAYERS; HEADS; FLOP;

D O I：

10.1134/S0031918X1907007X

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Spin valves Ta/(Ni80Fe20)(60)Cr-40/Co70Fe20Ni10/Cu/Co70Fe20Ni10/Ru/Co70Fe20Ni10/Fe50Mn50/Ta have been prepared by magnetron sputtering. It was found that the shift of low-field hysteresis loop with respect to H = 0 oscillates as the copper layer thickness changes. Structural studies showed the high perfection of the layer microstructure. Films of spin valves with the copper layer thickness corresponding to the second antiferromagnetic RKKI interaction maximum have been synthesized. They exhibit zero shift of low-field hysteresis loop and are characterized by high magnetoresistance effect. Sensing elements in the form of meanders prepared using the films demonstrate the almost anhysteretical field dependence of magnetoresistance and a magnetoresistive sensitivity of 0.5%/Oe.

引用

页码：653 / 659

页数：7

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