Domain duplication in magnetic tunnel junctions studied by Kerr microscopy

被引：7
作者：
Lenoble, O
Hehn, M
Lacour, D
Schuhl, A
Hrabovsky, D
Bobo, JF
Diouf, B
Fert, AR
机构：
[1] Phys Mat Lab, CNRS, UMR 7556, F-54506 Vandoeuvre Nancy, France
[2] Inst Natl Sci Appl, Phys Mat Condensee Lab, CNRS, UMR 5830, F-31077 Toulouse, France
来源：
PHYSICAL REVIEW B | 2001年 / 63卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.63.052409
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magneto-optic measurements have been performed to study the magnetic response of Co/Al2O3/Co tunnel junctions with the aim to show the domain duplication of the hard magnetic layer into the soft magnetic layer. The magnetization reversals of the hard and the soft layer have been studied separately and their ferromagnetic coupling is shown when combined in a tunnel junction. Features appearing in the variation of tunnel resistance as a function of applied field are associated to the domain phase evolution of each electrode and a deep understanding of the domain duplication is given.
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页数：4
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