科研之友
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摘要
Defect-induced ferromagnetism in nanoparticles has recently attracted extensive attention. We report here that (111) twinned BaTiO3 crystallites synthesized through a modified hydrothermal method can exhibit ferromagnetic properties. The unexpected ferromagnetism is verified to originate from the point defects. We also find that UV irradiation can significantly enhance the ferromagnetism through creating more lattice defects. The photochromic effect is also observed and discussed.
- 出版日期2010-1
- 单位山东大学
