Enhanced magnetic and optical properties of pure and (Mn,Sr) doped BiFeO3 nanocrystals |
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| Authors: | Xuelian Yu Xiaoqiang An |
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| Institution: | 1. Motorola (China) Electronics Ltd., No. 10, 4th Avenue, TEDA, Tianjin 300457, PR China;2. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, PR China;3. Department of Fire Engineering, Chinese People’s Armed Polices Forces Academy, Langfang, Hebei 065000, PR China;1. Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake City, Kolkata 700098, India;2. Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan;1. Nanoscience Unit, Department of Physics (Centre of Advanced Studies), Institute of Science, Banaras Hindu University, Varanasi, 221005, India;2. Department of Chemical Engineering and Technology, Indian Institute of Technology, Banaras Hindu University, Varanasi, 221005, India;3. Department of Physics, TDPG College, Jaunpur, India, 222001;4. Department of Chemistry and Bio-Chemistry, Florida State University, Tallahassee, FL, 32306-4390, United States;1. Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan;2. Department of Physics, COMSATS Institute of Information Technology, Islamabad, Pakistan;3. National Center for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan;1. Department of Physics, Quaid-i-Azam University, Islamabad, Pakistan;2. National Center for Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan;3. Physics Division Pinstech, P.O. Nilore, Islamabad, Pakistan;4. Department of Physics and Astronomy, University of Delaware, Newark, USA |
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| Abstract: | Pure and (Mn, Sr) doped BiFeO3 nanoparticles with the diameter in the range of 30–100 nm were controllably synthesized by a soft chemical method at a relatively low temperature. The diameter of the product was well controlled by adjusting the concentration of tartaric acid. Vibrating sample magnetometer (VSM) measurements verified that great enhancement of ferromagnetic property could be achieved either by decreasing their diameter or adding doping ions (Mn, Sr). Having suppressed the spiral spin structure, BiFeO3 nanoparticles with perfect ferroelectric and ferromagnetic properties were excellent in ferroelectromagnet applications. The photoluminescent property of BiFeO3 nanoparticles was also investigated in order to exploiting their possible application in nanoscale optoelectronic devices. |
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