Structural and magnetic properties of PLD Co-Ag granular thin films

被引：6

作者：

Agostinelli, E ^{[1
]}

Fiorani, D ^{[1
]}

Testa, AM ^{[1
]}

机构：

[1] CNR, ICMAT, Area Ric Roma, I-00016 Monterotondo, Italy

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 203卷

关键词：

granular films; pulsed laser deposition; magnetic properties;

D O I：

10.1016/S0304-8853(99)00227-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An investigation of static magnetic properties of CoxAg1-x (x = 0.25, 0.40) granular films grown by the pulsed laser deposition technique is reported for samples heat treated at different temperatures. Different terms have been found to contribute to the observed temperature dependence of the magnetization: isolated clusters, superparamagnetic particles and larger blocked particles. The increase of the deposition temperature up to 250 degrees C for x = 0.40 leads to an increase of the fraction of superparamagnetic particles. An annealing treatment at 250 degrees C for x = 0.25 determines the growth of particles size. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：196 / 198

页数：3

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