Scattering Events and Heat Conductivity of Layered La_2-x Sr_xCuO₄ Superconductors

Rakhi Sharma¹, B. D. Indu^2, and Pawan Kumar¹

¹Department of Physics, Gurukula Kangari Vishwavidyalaya, Haridwar-249401, India

²Department of Physics, Indian Institute of Technology Roorkee, Roorkee-247667, India

Cite this paper:
Rakhi Sharma, B. D. Indu and Pawan Kumar. Scattering Events and Heat Conductivity of Layered La_2-x Sr_xCuO₄ Superconductors. International Journal of Physics. 2016; 4(4):106-112. doi: 10.12691/ijp-4-4-4

Abstract

The problem of heat conduction in layered La_2-x Sr_xCuO₄ superconductor has been investigated in a new frame work of in-plane and cross-plane concepts with the help of modified Callaway model of thermal conductivity based on relaxation time approximation. Using the many body quantum dynamical theory of the expressions for thermal conductivity in context of in-plane and cross plane have been obtained and results are found in excellent agreement with experimental observations for layered La_2-x Sr_xCuO₄ cuprate superconductors. The theory explores the possibility of device fabrication cold in one direction and hot in the other.

Keywords:
relaxation times in-plane and Cross- plane thermal conductivity scattering process

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