Journal
SOLID STATE COMMUNICATIONS
Volume 150, Issue 43-44, Pages 2081-2084Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2010.09.037
Keywords
Ferroelectrics; Magnetically ordered materials; Crystal structure and symmetry; Phase transitions
Categories
Funding
- State Key Program for Basic Research of China [2009CB929503]
- Natural Science Foundation of China [50872050, 91022001]
- National Laboratory of Solid State Microstructures, Nanjing University
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The effects of Pr substitution on the structure and magnetism of Bi(Fe0.95Mn0.05)O3 powders are investigated systemically. X-ray diffraction and Raman spectra results confirm a phase transition from rhombohedral to tetragonal structure with increasing Pr concentration and the phase boundary occurs at 14% Pr substitution. At the phase boundary composition, enhanced room temperature ferromagnetism has been observed with a remanent magnetization about 0.260 emu/g. The increased magnetization can be understood considering both the modification of the short-range canted G-type antiferromagnetic order at phase boundaries and the suppression of long-range incommensurate spin cycloid of BiFeO3 by Pr substitution. (C) 2010 Elsevier Ltd. All rights reserved.
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