THICKNESS-DEPENDENT CURIE-TEMPERATURE OF GD(0001)/W(110) AND ITS DEPENDENCE ON THE GROWTH-CONDITIONS

被引：188

作者：

FARLE, M ^{[1
]}

BABERSCHKE, K ^{[1
]}

STETTER, U ^{[1
]}

ASPELMEIER, A ^{[1
]}

GERHARDTER, F ^{[1
]}

机构：

[1] FREE UNIV BERLIN,INST EXPTL PHYS,W-1000 BERLIN 33,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.47.11571

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Curie temperature T(C) of 5-100 monolayers Gd is determined by in situ ac-susceptibility (chi(ac)) measurements. T(C) of properly annealed layer-by-layer-grown Gd films decreases as a function of film thickness in the same way as is usually found from finite-size effects in other ferromagnets. Sharp cusps in the susceptibility as a function of temperature are measured. The shape of the chi(ac) signal and the Curie temperature is strongly dependent on the growth mode and on the annealing procedure after deposition at room temperature. These results are compared to our earlier experiments on Gd films grown at elevated substrate temperatures.

引用

页码：11571 / 11574

页数：4

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