Dielectric relaxation in Bi12SiO20 crystals
Autor: | V. M. Duda, T. V. Panchenko, L. M. Karpova |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Physics of the Solid State. 39:1085-1090 |
ISSN: | 1090-6460 1063-7834 |
DOI: | 10.1134/1.1130017 |
Popis: | A study is reported of the temperature and frequency dependences of the permittivity and losses in Cr-doped Bi12SiO20 crystals at sonic frequencies and in the range 300–800 K. A number of dielectric anomalies and a close-to-linear Cole-Cole diagram have been observed. The results are discussed by invoking the concepts of electron hopping and screening of the induced polarization through the relaxation of local lattice distortions. |
Databáze: | OpenAIRE |
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