Dielectric relaxation in Bi12SiO20 crystals

Autor: V. M. Duda, T. V. Panchenko, L. M. Karpova
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