PECULIARITIES OF THE ENERGY-DISSIPATION O F LOW-FREQUENCY OSCILLATIONS IN BISMUTH CERAMICS IN TEMPERATURE-RANGE 4.2-130 K

Authors
LAZAREV BG STARODUBOV YD SERGEEVA GG LAZAREVA MB CHIRKINA LA OKOVIT VS CHECHKIN FV PETRENKO VT TIKHONOVSKII MA
Citation
Bg. Lazarev et al., PECULIARITIES OF THE ENERGY-DISSIPATION O F LOW-FREQUENCY OSCILLATIONS IN BISMUTH CERAMICS IN TEMPERATURE-RANGE 4.2-130 K, Fizika nizkih temperatur, 22(7), 1996, pp. 819-824
Citations number
30
Categorie Soggetti
Physics, Applied
Journal title
Fizika nizkih temperatur → ACNP
ISSN journal
01326414
Volume
22
Issue
7
Year of publication
1996
Pages
819 - 824
Database
ISI
SICI code
0132-6414(1996)22:7<819:POTEOF>2.0.ZU;2-U
Abstract
Measurement of low frequency (0.8 Hz) internal friction sie carried ou t for the different states of Bi-ceramics in the temperature range 4.2 -130 K. It Is found that the variations in the system of free charge c arries for HTSC at T<T-c. tend to change the dynamics of dislocations. Thus, the nonlinear temperature dependence of the internal friction i s in agreement with the dislocation mechanism of softening ill the sup erconducting state. It is shown that the method of measuring temperatu re dependence of the internal friction can be used for studying the fl ux trapping effect in superconducting state.