COMBINATORIAL INVESTIGATION OF STRUCTURAL AND FERROELECTRIC PROPERTIES OF A- AND B-SITE CO-DOPED BiFeO3 THIN FILMS

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. We have systematically investigated structural and ferroelectric properties of A-and B-site co-doped BiFeO 3 thin films using the composition spread technique. X-ray diffraction and polarization hysteresis loop measurements reveal that the co-doped (Bi,Sm)(Fe,Sc)O 3 exhibits the structural transition from the rhombohedral to an or-thorhombic structural phase which is accompanied by a double-hysteresis behavior in the polarization hysteresis loop. We find that the phase transition takes place at Sm ∼14% independent of the Sc composition. This clearly indicates the significance of the A-site dopant on structural and ferroelectric properties in BiFeO 3 .