The magnetic properties of gadolinium/holmium superlattices

被引：7

作者：

BrynJacobsen, C ^{[1
]}

McMorrow, DF ^{[1
]}

Ward, RCC ^{[1
]}

Wells, MR ^{[1
]}

机构：

[1] RISO NATL LAB,DEPT CHEM,DK-4000 ROSKILDE,DENMARK

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 41期

关键词：

D O I：

10.1088/0953-8984/9/41/017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The magnetic properties of Gd/Ho superlattices have been investigated using neutron-diffraction techniques. Between T approximate to 297 K and T approximate to 138 K, the magnetic moments in each Gd block order ferromagnetically in the basal plane with the moments in adjacent Gd blocks antiferromagnetically aligned. At temperatures below T approximate to 138 K, the Ho moments order in a basal-plane helix, while the Gd moments remain ferromagnetically aligned in the basal plane with an alignment between adjacent Gd blocks that is dependent on temperature and the Ho-block thickness. The coherence lengths of the magnetic structures in the growth direction range from 350 Angstrom to 800 Angstrom. Comparisons are made with the results from previous studies of heavy rare-earth superlattices.

引用

页码：8727 / 8735

页数：9

共 25 条

[1] ENHANCED CURIE TEMPERATURES AND MAGNETOELASTIC DOMAINS IN DY/LU SUPERLATTICES AND FILMS [J].