Structural defects in multiferroic BiMnO{sub 3} studied by transmission electron microscopy and electron energy-loss spectroscopy
- Laboratory for Extreme Condition Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences P.O. Box 603, Beijing 100080 (China)
The multiferroic material BiMnO{sub 3} synthesized under high pressure has been systematically studied by transmission electron microscopy and electron energy-loss spectroscopy, and some important structural defects are revealed in this multiferroic material. The frequently observed defects are characterized to be {sigma}3(111) twin boundaries, Ruddlesden-Popper [Acta Crystallogr. 11, 54 (1958)] antiphase boundaries, and a{sub p}<001>{sub p} superdislocations connected with a small segment of Ruddlesden-Popper defect. These defects are present initially in the as-synthesized sample. In addition, we find that ordered voids (oxygen vacancies) are easily introduced into the multiferroic BiMnO{sub 3} by electron-beam irradiation.
- OSTI ID:
- 20880019
- Journal Information:
- Journal of Applied Physics, Vol. 100, Issue 4; Other Information: DOI: 10.1063/1.2245199; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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