Magnetic properties of ultrathin cobalt films on SiO2 substrates

被引：14
|
作者：
Entani, S [1 ]
Kiguchi, M [1 ]
Ikeda, S [1 ]
Saiki, K [1 ]
机构：
[1] Univ Tokyo, Grad Sch Frontier Sci, Dept Complex Sci & Engn, Kashiwa, Chiba 2778561, Japan
来源：
THIN SOLID FILMS | 2005年 / 493卷 / 1-2期
关键词：
magnetic properties and measurements; SMOKE; cobalt; surface morphology;
D O I：
10.1016/j.tsf.2005.07.310
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thickness dependent magnetism of the ultrathin Co films grown on SiO2 substrates was studied by surface magneto-optical Kerr effect in ultrahigh vacuum. The complicated thickness dependence of magnetization, coercive force and magnetic susceptibility was discussed in relation to surface morphology. Existence of 1 monolayer (ML) dead layer originated from partial oxidation at the Co/SiO2 interface. For the thinner films (similar to 2 ML), resistance to the magnetic reversal process was large because of larger surface roughness. For thicker films, reduction of the resistance was observed because of formation of continuous and defect less films. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：221 / 225
页数：5
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