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Centimeter-size BiFeO3 single crystals grown by flux method
Authors:R Haumont  R Saint-Martin  C Byl
Institution:1. Laboratoire de Physico-Chimie de l'Etat Solide, ICMMO, Université Paris sud , Orsay, France raphael.haumont@lpces.u-psud.fr;3. Laboratoire de Physico-Chimie de l'Etat Solide, ICMMO, Université Paris sud , Orsay, France;4. Laboratoire d’Etude des Matériaux Hors Equilibre, ICMMO, Université Paris sud , Orsay, France
Abstract:A narrow part of Fe2O3–Bi2O3 phase diagram was re-investigated in order to elaborate single crystals of the multiferroic BiFeO3 (BFO). Centimeter-size single crystals were successfully obtained by flux method, and present a preferred growth direction. X-ray diffraction studied have highlighted that the growth direction is along the polar axis 111] r of the structure. The stability of BFO versus temperature (reversible ferroelectric transition followed by multiple irreversible decompositions) is discussed in the light of Differential Scanning Calorimetry (DSC) analysis performed between 25 and 1400°C.
Keywords:multiferroic  BiFeO3  flux method  DSC
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