Magnetic easy-axis switching in Pt/Co/Pt sandwiches induced by nitrogen ion beam irradiation

被引：7

作者：

Blon, T

Ben Assayag, G

Chassaing, D

Hrabovsky, D

Bobo, JF

Ousset, JC

Snoeck, E

机构：

[1] CEMES, F-31055 Toulouse, France

[2] LMPC INSA UPS, F-31055 Toulouse, France

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 12期

关键词：

D O I：

10.1063/1.1712014

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of N+ ion irradiation on the magnetic anisotropy of ultrathin Co films in the Pt/Co(1 nm)/Pt (111) system is investigated. The magneto-optical measurements indicate that the as-deposited trilayers display a perpendicular magnetic anisotropy whose properties drastically change with the fluence in the range of 10(12) to 10(16) ions/cm(2). The coercive field progressively decreases as the fluence increases. The superconducting quantum interference device measurements evidence that, for the highest fluences, the paramagnetic limit is not reached moreover an in-plane switching of the anisotropy is observed. Simulations are performed to evaluate damage energy induced by N+ irradiation. (C) 2004 American Institute of Physics.

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页码：8030 / 8034

页数：5

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