Strain enhanced magnetic anisotropy in SmCo/BaTiO3 multiferroic heterostructures
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
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.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-218404DOI: 10.1063/1.4863819ISI: 000331645900052OAI: oai:DiVA.org:uu-218404DiVA: diva2:695580