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Open Access Improved ferromagnetism of BiFeO3 nanoparticles based on different crystal structures

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BiFeO3 nanoparticles with different atomic arrangements were synthesized. The ferromagnetism of BiFeO3 nanoparticles was affected directly by the degree of crystallization. A stronger saturation magnetization ∼2.914 emu/g was obtained in partially-crystallized BiFeO3 nanoparticles. In addition, the partially-crystallized BiFeO3 showed a 6 K shift of the spin-glass-like freezing temperature and exchange bias field kept almost zero with the change of temperature, which demonstrated a common control of the ferromagnetism and antiferromagnetism were achieved by changing the atomic arrangement order degree.

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Keywords: AMORPHOUS PHASE; BIFEO3; EXCHANGE BIAS; FERROMAGNETISM; MULTIFERROIC

Document Type: Short Communication

Publication date: June 1, 2017

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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