Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 15, Issue 10, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-013-1969-7
Keywords
Er-doped BiFeO3; Nanoparticles; Raman; Magnetic properties
Categories
Funding
- National Natural Science Foundation of China [11147101]
- Natural Science Foundation of Henan [102102210448, 102102210452]
- Natural Science Foundation of Henan Department of Education [13A140806]
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In this work, Bi1-xErxFeO3 ( x = 0.05-0.25) nanoparticles were prepared by sol-gel method. X-ray diffraction and Raman analysis show that the structure of Er-doped BiFeO3 changes from rhombohedral lattice to orthorhombic one by increasing x. The remnant magnetization of the Bi1-xErxFeO3 is significantly higher than those in BiFeO3 doped with non-magnetically rare-earth and it increases with increasing Er concentration. The enhanced magnetization was attributed to the suppression of the cycloidal spin structure by Er3+ substitution and the ferromagnetic interaction between Fe3+ and Er3+ ions. The variation of the magnetization with temperature is also discussed.
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