Transverse magnetic exchange springs in a DyFe2/YFe2 superlattice

被引：12

作者：

Stenning, G. B. G. ^{[1
]}

Bowden, G. J. ^{[1
]}

Gregory, S. A. ^{[1
]}

de Groot, P. A. J. ^{[1
]}

van der Laan, G. ^{[2
]}

Shelford, L. R. ^{[2
]}

Bencok, P. ^{[2
]}

Steadman, P. ^{[2
]}

Dobrynin, A. N. ^{[2
]}

Hesjedal, T. ^{[3
]}

机构：

[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] Diamond Light Source, Didcot OX11 0DE, Oxon, England

[3] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW B | 2012年 / 86卷 / 17期

关键词：

X-RAY DICHROISM; ANISOTROPY; MEDIA;

D O I：

10.1103/PhysRevB.86.174420

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using a history-dependent method, it is possible to prepare magnetic superlattices, consisting of alternating hard and soft layers, in transverse exchange spring states. The procedure, which involves both physical rotation and magnetization routines, is illustrated using a (110)-oriented [DyFe2(60 angstrom)/YFe2(240 angstrom)](15) multilayer film. In small applied fields, it is shown that the magnetic response of a transverse magnetic exchange spring is reversible. However, in fields of up to 14 T, the Dy moments are pulled up out of their local in-plane [00 (1) over bar] minimum into an out-of-plane [100] (or equivalent [010]) axis. The reversible transverse exchange spring state is then lost. Thereafter, the magnetic loop is characterized by an irreversible out-of-plane magnetic exchange spring state.

引用

页数：5

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