Effective uniaxial anisotropy in easy-plane materials through nanostructuring

Author(s)
J. Fischbacher, A. Kovacs, H. Oezelt, M. Gusenbauer, D. Suess, T. Schrefl
Abstract

Permanent magnet materials require a high uniaxial magneto-crystalline anisotropy. Exchange coupling between small crystallites with easy-plane anisotropy induces an effective uniaxial anisotropy if arranged accordingly. Nanostructuring of materials with easy-plane anisotropy is an alternative way to create hard-magnetic materials. The coercivity increases with decreasing feature size. The resulting coercive field is about 12 percent of the anisotropy field for a crystal size of 3.4 times the Bloch parameter.

Organisation(s)
Physics of Functional Materials
External organisation(s)
University for Continuing Education Krems
Journal
Applied Physics Letters
Volume
111
No. of pages
4
ISSN
0003-6951
DOI
https://doi.org/10.1063/1.4997816
Publication date
11-2017
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics
Keywords
ASJC Scopus subject areas
Physics and Astronomy (miscellaneous)
Portal url
https://ucris.univie.ac.at/portal/en/publications/effective-uniaxial-anisotropy-in-easyplane-materials-through-nanostructuring(44fe497c-2325-485b-9302-057e8b6e5ad4).html