Interlayer magnetic coupling interactions of two ferromagnetic layers by spin polarized tunneling

被引：207

作者：

Faure-Vincent, J ^{[1
]}

Tiusan, C ^{[1
]}

Bellouard, C ^{[1
]}

Popova, E ^{[1
]}

Hehn, M ^{[1
]}

Montaigne, F ^{[1
]}

Schuhl, A ^{[1
]}

机构：

[1] Phys Mat Lab, F-54506 Vandoeuvre Les Nancy, France

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.89.107206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic interactions involving ferromagnetic layers separated by an insulating barrier have been studied experimentally on a fully epitaxial hard-soft magnetic tunnel junction: Fe/MgO/Fe/Co. For a barrier thickness below 1 nm, a clear antiferromagnetic interaction is observed. Moreover, when reducing the MgO thickness from 1 to 0.5 nm, the coupling strength increases up to J=-0.26 erg.cm(-2). This behavior, well fitted by theoretical models, provides an unambiguous signature of the interlayer exchange coupling by spin-polarized quantum tunneling.

引用

页数：4

共 19 条

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