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

Autor: I. Hallsteinsen, M. Moreau, R. V. Chopdekar, E. Christiansen, M. Nord, P.-E. Vullum, J. K. Grepstad, R. Holmestad, S. M. Selbach, A. Scholl, E. Arenholz, E. Folven, T. Tybell
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: APL Materials, Vol 5, Iss 8, Pp 086107-086107-8 (2017)
Druh dokumentu: article
ISSN: 2166-532X
DOI: 10.1063/1.4986555
Popis: 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 ⟨11¯0⟩ 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 ⟨11¯0⟩ and ⟨112¯⟩ 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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