Investigating the effect of a stress-based uniaxial anisotropy on the magnetic behaviour of La_0.7Sr_0.3MnO₃ elements

O'Shea, K. J., Bova, K., McGrouther, D. and MacLaren, D. A. (2014) Investigating the effect of a stress-based uniaxial anisotropy on the magnetic behaviour of La_0.7Sr_0.3MnO₃ elements. EPJ Web of Conferences, 75, 05017. (doi: 10.1051/epjconf/20147505017)

Abstract

We investigate the interplay between shape anisotropy and a stress-based uniaxial anisotropy on the magnetic domain structure of La_0.7Sr_0.3MnO₃ nanoelements as a function of aspect ratio, using micromagnetic simulations. We show that a direct competition between the anisotropies gives rise to high energy multi-domain flux closure configurations, whilst an alignment of the anisotropies can modify the effective element dimensions and act to stabilise a single domain configuration. Our results demonstrate the ability to control the spin state of La_0.7Sr_0.3MnO₃ elements in addition to tailoring the domain wall width by controlling the anisotropy of the material, which is key for spintronic applications that require a high spin-polarization and stable magnetic configurations.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: MacLaren, Professor Donald and McGrouther, Dr Damien and O'Shea, Miss Kerry
• Authors: O'Shea, K. J., Bova, K., McGrouther, D., and MacLaren, D. A.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: EPJ Web of Conferences
• Publisher: EDP Sciences
• ISSN: 2100-014X
• Copyright Holders: Copyright © 2014 The Authors
• First Published: First published in EPJ Web of Conferences 75:05017
• Publisher Policy: Reproduced under a Creative Commons License