Dynamic evolution of the magnetic anisotropy of ultrathin Co/Cu(110) films

被引：34

作者：

Hope, S ^{[1
]}

Gu, E ^{[1
]}

Tselepi, M ^{[1
]}

Buckley, ME ^{[1
]}

Bland, JAC ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.57.7454

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the magnetic properties of the Co/Cu(110) system (5 ML < d(Co) < 40 ML) at 300 K, using the magneto-optic Kerr effect. The magnetic easy axis is found to switch through 90 degrees for a constant Co thickness, typically over a period of one hour. We attribute this behavior to the reversal in sign of the effective in-plane uniaxial anisotropy constant, due to the adsorption of submonolayer quantities of residual CO gas in the UHV chamber. Scanning tunnel microscope images reveal the growth of elongated island structures preferentially oriented along the [001] direction providing edges for gas adsorption.

引用

页码：7454 / 7457

页数：4

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