Electric field effects in the EPR spectrum of low-spin Ni3+ centers in the KTaO3 crystal
| Autor: | A. G. Razdobarin, V. É. Bursian, D. R. Evans, L. S. Sochava, S. A. Basun |
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| Rok vydání: | 2007 |
| Předmět: |
Bond dipole moment
Materials science Condensed matter physics Transition dipole moment Condensed Matter Physics Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Magnetization Polarization density Electric dipole moment Dipole Electric dipole transition Atomic physics Magnetic dipole |
| Zdroj: | Physics of the Solid State. 49:2262-2265 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/s1063783407120086 |
| Popis: | The electric field effects in the EPR spectra of low-spin (S = 1/2) Ni3+ tetragonal centers in KTaO3 single crystals are investigated. It is revealed that the resonance lines are split and the centers are oriented as a result of the interaction of the external field with the electric dipole moment of the center. The dipole moment of the center is determined to be p = 100 D = 21 eA. An analysis of the set of experimental data obtained permits one to choose correctly the microscopic models for two nickel centers in KTaO3 crystals among the models discussed in the literature. |
| Databáze: | OpenAIRE |
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