Change in the Magnetic Structure of (Bi,Sm)FeO3 Thin Films at the Morphotropic Phase Boundary Probed by Neutron Diffraction

Published

November 1, 2014

Author(s)

Shingo Maruyama, Varatharajan Anbusathaiah, Amy Fennell, Mechthild Enderle, Ichiro Takeuchi, William D. Ratcliff

Abstract

We report on the evolution of the magnetic structure of BiFeO₃ thin films grown on SrTiO₃ substrates as a function of Sm doping. We determined the magnetic structure using neutron diffration. We found that as Sm increases, the magnetic structure evolves from a cycloid to a G-type antiferromagnet at the morphotropic phase boundary, where there is a large piezoelectric response due to an electric-field induced structural transition. The occurrence of the magnetic structural transition at the morphotropic phase boundary offers another route towards room temperature multiferroic devices.

Citation

APL Materials

Volume

2

Issue

11

Pub Type

Journals

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Keywords

magnetism, multiferroic

Citation

Maruyama, S. , Anbusathaiah, V. , Fennell, A. , Enderle, M. , Takeuchi, I. and Ratcliff, W. (2014), Change in the Magnetic Structure of (Bi,Sm)FeO₃ Thin Films at the Morphotropic Phase Boundary Probed by Neutron Diffraction, APL Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=915995 (Accessed October 13, 2025)