Phase transition close to room temperature in BiFeO3 thin films

Physics – Condensed Matter – Materials Science

Scientific paper

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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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