|
Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2002, Volume 76, Issue 3, Pages 204–208
(Mi jetpl2886)
|
|
|
|
This article is cited in 15 scientific papers (total in 15 papers)
CONDENSED MATTER
Electric field dependence of thermal conductivity of a granular superconductor: Giant field-induced effects predicted
S. A. Sergeenkov Joint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics
Abstract:
The temperature and electric field dependence of electronic contribution to the thermal conductivity (TC) of a granular superconductor is considered within a 3D model of inductive Josephson junction arrays. In addition to a low-temperature maximum of zero-field TC $\kappa (T,0)$ (controlled by mutual inductance $L_0$ and normal state resistivity $R_n$), the model predicts two major effects in applied electric field: (i) decrease of the linear TC, and (ii) giant enhancement of the nonlinear (i.e. $\nabla T$-dependent) TC with $\Delta \kappa (T,E)/\kappa (T,0)$ reaching $500\%$ for parallel electric fields $E\simeq E_T$ ($E_T=S_0|\nabla T|$ is an «intrinsic» thermoelectric field). A possiblity of experimental observation of the predicted effects in granular superconductors is discussed.
Received: 03.06.2002 Revised: 01.07.2002
Citation:
S. A. Sergeenkov, “Electric field dependence of thermal conductivity of a granular superconductor: Giant field-induced effects predicted”, Pis'ma v Zh. Èksper. Teoret. Fiz., 76:3 (2002), 204–208; JETP Letters, 76:3 (2002), 170–174
Linking options:
https://www.mathnet.ru/eng/jetpl2886 https://www.mathnet.ru/eng/jetpl/v76/i3/p204
|
Statistics & downloads: |
Abstract page: | 138 | Full-text PDF : | 48 | References: | 25 |
|