MAGNETOELASTIC AND EXCHANGE CONTRIBUTIONS TO THE HELICAL-FERROMAGNETIC TRANSITION IN DYSPROSIUM EPITAXIAL-FILMS

被引：34

作者：

DUMESNIL, K ^{[1
]}

DUFOUR, C ^{[1
]}

MANGIN, P ^{[1
]}

MARCHAL, G ^{[1
]}

HENNION, M ^{[1
]}

机构：

[1] CEA SACLAY,LAB LEON BRILLOUIN,F-91191 GIF SUR YVETTE,FRANCE

来源：

EUROPHYSICS LETTERS | 1995年 / 31卷 / 01期

关键词：

D O I：

10.1209/0295-5075/31/1/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Curie temperature of dysprosium films epitaxially grown on yttrium and on erbium is shown to increase continuously with the epitaxial strain induced along the c-axis. This variation is correlated to modifications of the alpha strains, of the gamma distortion and of the exchange energy barrier. The evolution of these different terms is discussed from the experimental thermal variations of the lattice parameters and turn angles determined by neutron diffraction.

引用

页码：43 / 48

页数：6

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