THE ELECTROMAGNETIC-FIELD FREQUENCY AT WH ICH THE OHMIC HTSC RESISTANCE IS TEMPERATURE-INDEPENDENT

Citation
Vm. Dmitriev et al., THE ELECTROMAGNETIC-FIELD FREQUENCY AT WH ICH THE OHMIC HTSC RESISTANCE IS TEMPERATURE-INDEPENDENT, Fizika nizkih temperatur, 21(9), 1995, pp. 906-911
Citations number
7
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
01326414
Volume
21
Issue
9
Year of publication
1995
Pages
906 - 911
Database
ISI
SICI code
0132-6414(1995)21:9<906:TEFAWI>2.0.ZU;2-Z
Abstract
The feature of the temperature-frequency dependence of the Ohmic resis tance R in HTSC materials, namely the change of the sign of the deriva tive partial derivative R/partial derivative T at a certain frequency f(c), is studied. It is shown that f(c) correlates with the (partial d erivative rho/partial derivative T) / rho(0) value, where rho(0) is th e dc resistivity of the sample measured at the temperature T-0 of the onset of the linear dependence rho(T). It is found experimentally that fc is dependent on \partial derivative rho/partial derivative T\ and on rho(0). The formula is derived, which relates the parameters consid ered.