Thermal conductivity of YBa2Cu3O7 from 7 K to 260 K

Ravindran, T. R. ; Sankaranarayanan, V. ; Srinivasan, R. (1992) Thermal conductivity of YBa2Cu3O7 from 7 K to 260 K Pramana - Journal of Physics, 39 (2). pp. 109-116. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/j_archive/pramana/39/2/109-11...

Related URL: http://dx.doi.org/10.1007/BF02857500

Abstract

Thermal conductivity of YBa2Cu3O7 has been measured on samples of a few mm thickness. Above Tc thermal conductivity is found to decrease with increase in temperature, pointing towards a contribution to thermal resistivity from three-phonon Umklapp processes. Below Tc thermal conductivity increases rapidly before reaching a maximum at about 50 K and then falls towards zero at lower temperatures. The experimental set up is described and results discussed.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Thermal Conductivity; YBCO; Three-phonon Processes
ID Code:57923
Deposited On:30 Aug 2011 08:20
Last Modified:18 May 2016 09:08

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