Sastry, M. D. ; Moghbel, M. ; Venkateswarlu, Putcha (1996) Impurity mediated mechanism of photorefractive effect in BaTiO3: a combination of Sangster and piezoelectric effects Pramana - Journal of Physics, 47 (4). pp. 331-337. ISSN 0304-4289
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Official URL: http://www.ias.ac.in/j_archive/pramana/47/4/331-33...
Related URL: http://dx.doi.org/10.1007/BF02848533
Abstract
An impurity mediated mechanism of photorefractive effect in BaTiO3 is proposed. The photoinduced changes in the relative concentration of Fe3+ in BaTiO3 results in an electro-optic coupling through a combination of the Sangster and piezoelectric effects. This is based on the examination of the extensive results on the EPR of Fe3+ in the BaTiO3 lattice. This model explains the improved photorefractive behavior of BaTiO3 on doping with Co2+.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Photorefractive Effect; BaTiO3; Electron Paramagnetic Resonance of Fe3+ in BaTiO3 |
| ID Code: | 68615 |
| Deposited On: | 21 Nov 2011 04:15 |
| Last Modified: | 18 May 2016 15:21 |
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