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Strain enhanced magnetic anisotropy in SmCo/BaTiO3 multiferroic heterostructures
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
2014 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 115, no 5, 053905- p.Article in journal (Refereed) Published
Abstract [en]

We report on the changes in magnetic properties of SmCo/BaTiO3 multiferroic heterostructures as the BaTiO3 substrate undergoes its structural phase transitions. The observations show that the macroscopic magnetization of the SmCo film is affected by the structural phase transitions of the BaTiO3 substrate. Kerr microscopy images show that the magnetic domains of SmCo films have a zigzag shape but their shape is not influenced by the strain transferred from the substrate during the structural phase transitions. Analysis of the magnetoelastic energy shows that the macroscopic change of the magnetization is accompanied by an enhancement of the magnetic anisotropy for the orthorhombic phase of the BaTiO3 substrate and not a change in symmetry of the anisotropy.

Place, publisher, year, edition, pages
2014. Vol. 115, no 5, 053905- p.
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-218404DOI: 10.1063/1.4863819ISI: 000331645900052OAI: oai:DiVA.org:uu-218404DiVA: diva2:695580
Available from: 2014-02-11 Created: 2014-02-11 Last updated: 2017-12-06Bibliographically approved

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Moubah, RedaMagnus, FridrikHjörvarsson, BjörgvinAndersson, Gabriella

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