Electronic Raman scattering in the single-CuO2 layered superconductor Tl2Ba2CuO6+x
L.V. Gasparov (1, 2), P. Lemmens (2), M. Brinkmann (1), N.N., Kolesnikov (2), G. Guntherodt (1) ((1) 2. Physikalisches Institut,, RWTH-Aachen, Aachen, Germany, (2) Institute for Solid State Physics,, Chernogolovka, Russia)
TL;DR
This study investigates electronic Raman scattering in Tl2Ba2CuO6+x to understand how the scattering cross-section relates to the CuO2-plane structure and Fermi surface details in high-temperature superconductors.
Contribution
It provides experimental data supporting the dependence of Raman scattering cross-section on the CuO2-plane configuration and confirms theoretical predictions for dx^2-y^2-wave symmetry.
Findings
Qualitative agreement with Devereaux and Einzel's calculations
Raman scattering cross-section depends on CuO2-plane structure
Supports dx^2-y^2-wave symmetry in the superconductor
Abstract
Electronic Raman scattering in Tl-2201 has been investigated in order to test whether the scattering cross-section in high temperature superconductors depends on the number of CuO2-planes, i.e. sheets or specific details of the Fermi surface. The experimental data are in qualitative agreement with the calculations of Devereaux and Einzel based on the dx^2-y^2-wave symmetry of the order parameter used in the description of the Raman scattering cross section.
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