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Magnetic domain configuration of (111)-oriented LaFeO3 epitaxial thin films

Abstract

In antiferromagnetic spintronics control of the domains and corresponding spin axis orientation is crucial for devices. Here we investigate the antiferromagnetic axis in (111)-oriented LaFeO3/SrTiO3, which is coupled to structural twin domains. The structural domains have either the orthorhombic a- or b-axis along the in-plane h110i cubic directions of the substrate, and the corresponding magnetic domains have the antiferromagnetic axis in the sample plane. Six degenerate antiferromagnetic axes are found corresponding to the h110i and h112i in-plane directions. This is in contrast to the biaxial anisotropy in (001)-oriented films and reflects how crystal orientation can be used to control magnetic anisotropy in antiferromagnets.
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Category

Academic article

Language

English

Author(s)

  • Ingrid Hallsteinsen
  • Magnus Moreau
  • R.V. Chopdekar
  • Emil Christiansen
  • Magnus Kristofer Nord
  • Per Erik Vullum
  • Jostein Grepstad
  • Randi Holmestad
  • Sverre Magnus Selbach
  • A Scholl
  • E Arenholz
  • Erik Folven
  • Per Thomas Martin Tybell

Affiliation

  • SINTEF Industry / Materials and Nanotechnology
  • Norwegian University of Science and Technology
  • University of California
  • Lawrence Berkeley National Laboratory

Year

2017

Published in

APL Materials

Volume

5

Issue

8

View this publication at Norwegian Research Information Repository