Effect of magnetic field on dislocation-induced unelasticity and plasticity of LiF crystals with various impurities

Autor: É. P. Belozerova, N. A. Tyapunina, V. N. Vinogradov, V. L. Krasnikov
Rok vydání: 2003
Předmět:
Zdroj: Physics of the Solid State. 45:98-103
ISSN: 1090-6460
1063-7834
DOI: 10.1134/1.1537418
Popis: The effect of a magnetic field of 0.04–0.8 T on the amplitude dependence of the internal friction in LiF crystals with various impurities is studied using a two-component resonant-oscillator method at a frequency of 80 kHz. The state of the samples was controlled in situ from the current-voltage characteristics of a compound oscillator. It is found that the state of the dislocations-pinning-centers system changes in the presence of a magnetic field; this leads to an increase in the internal friction and plasticity of the samples. The effect of the magnetic field is sensitive to the impurity composition in the crystal.
Databáze: OpenAIRE