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1992 | 82 | 3 | 503-510
Article title

Low-Symmetry Aspects in EPR Spectra of Mn^{2+} at Bi^{3+} Sites in BiVO_{4} Single Crystal

Content
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Languages of publication
EN
Abstracts
EN
Zero-field splitting parameters obtained from EPR X-band experiments of Baran et al. (1985) and Yeom et al. (1992) are reanalyzed. Transformation relations are derived to express the two sets of data in the same axis system. Problems arising from using a truncated zero-field splitting Hamiltonian in fitting the experimental data are elucidated. Low-symmetry aspects in EPR spectra of Mn^{2+} at Bi^{3+} sites in BiVO_{4} single crystal are considered. Good agreement for orthorhombic parameters b^{0}_{2} and b^{2}_{2} is obtained indicating that the centres observed in the two cases are the same Mn centres. The remaining b^{q}_{k} parameters accounting for the actual site symmetry around Mn^{2+} impurity which seems to be lower than orthorhombic in the ferroelastic phase cannot be unambiguously determined from the existing EPR data.
Keywords
Publisher

Year
Volume
82
Issue
3
Pages
503-510
Physical description
Dates
published
1992-09
received
1992-06-10
Contributors
author
  • Department of Physics, Korea University, Seoul 136-701, Republic of Korea
author
  • Department of Physics, Korea University, Seoul 136-701, Republic of Korea
author
  • Department of Applied Science, City Polytechnic of Hong Kong, Hong Kong
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv82z315kz
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