A quantum dynamical approach to various scattering mechanisms and their influences on thermal conductivity of Sr- and Zn-doped La2CuO4 high temperature superconductor cuprate
A. Parmar+, A. K. Dimri*, M. K. Bera+
+Department of Physics, Maharishi Markandeshwar (Deemed to be University), 133207 Mullana Ambala, Haryana, India
*Department of Physics, Maharaj Singh College, 247001 Saharanpur, Uttar Pradesh, India
Abstract
A theoretical investigation of the thermal conductivity of lightly Sr- and Zn-doped La2CuO4 high temperature
superconductor cuprates has been analysed auspiciously. We used a quantum dynamical technique to develop the symbol of
relaxation time and other scattering processes from frequency (energy) line widths in this formulation. The primary focus of
this study is the effect of phonon-dopant atom scattering on the thermal conductivity of doped La2CuO4, as well as other
dominant scattering mechanisms such as electron-phonon, cubic and quartic anharmonic phonon, cubic and quartic phonon
interference, and phonon-magnon, among others. An acceptable level of agreement between theory and experiment has been
reached.