Phase transition close to room temperature in BiFeO3 thin films

Details Phase transition close to room temperature in BiFeO3 thin films Phase transition close to room temperature in BiFeO3 thin films

2011-07-28

arxiv.org/abs/1107.5801v1

J. Phys.: Condens. Matter 23 (2011) 342202

Physics

Condensed Matter

Materials Science

accepted in J. Phys.: Condens. Matter (Fast Track Communication)

Scientific paper

10.1088/0953-8984/23/34/342202

BiFeO3 (BFO) multiferroic oxide has a complex phase diagram that can be mapped by appropriately substrate-induced strain in epitaxial films. By using Raman spectroscopy, we conclusively show that films of the so-called supertetragonal T-BFO phase, stabilized under compressive strain, displays a reversible temperature-induced phase transition at about 100\circ, thus close to room temperature.

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