High domain‐wall velocities in (Gd,Lu)3(Fe,Mn,Al)5O12garnet epilayers with orthorhombic anisotropy
作者:
D. J. Breed,
A. M. J. van der Heijden,
H. Logmans,
A. B. Voermans,
期刊:
Journal of Applied Physics
(AIP Available online 1978)
卷期:
Volume 49,
issue 2
页码: 939-941
ISSN:0021-8979
年代: 1978
DOI:10.1063/1.324633
出版商: AIP
数据来源: AIP
摘要:
Garnet films can be given orthorhombic anisotropy by growing films with positive magnetostriction constants under compression on (110) ‐oriented substrates. The positive magnetostriction is achieved by the incorporation of Mn3+ions in (Gd,Lu)3Fe5O12films. In this way bubble films with a strong in‐plane anisotropy field are obtained. This in‐plane anisotropy increases the maximum velocity of the domain walls to at least 40 000 cm s−1. The domain‐wall mobility in these films is about 1500 cm s−1 Oe−1. The dependence of the domain‐wall velocity on the anisotropy and on the orientation of the domain wall in the film plane is shown.
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