Publication
Title
Tunable stress induced magnetic domain configuration in FePt thin films
Author
Abstract
We present a study of the magnetic properties of chemically disordered ferromagnetic FePt films of 100 nm thickness that have been grown by sputtering with different Ar pressures ($3\ \text{mTorr}\leqslant {{P}_{\text{Ar}}}\leqslant 13$ mTorr). We found that the residual stress can be controlled by the sputtering pressure, which in turn allows to tune the perpendicular magnetic anisotropy due to magnetoelastic effects. Films deposited at lower Ar pressures display an in-plane compressive stress that favors an out of plane component of the magnetization and the formation of a magnetic domain structure in the form of stripes. For higher pressures the stress is relaxed and the magnetic configuration changes to planar domains. These results show the possibility to accurately tune the initial magnetic state in films with potential applications in magnetoelectrically coupled devices.
Language
English
Source (journal)
Journal of physics: D: applied physics. - London
Publication
London : 2015
ISSN
0022-3727
Volume/pages
48:40(2015), 10 p.
Article Reference
405003
ISI
000362006400004
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 19.02.2016
Last edited 07.09.2017
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