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Electronic Raman scattering in optimally doped Tl-2201

  • L. V. Gasparov
  • , P. Lemmens
  • , M. Brinkmann
  • , N. Kolesnikov
  • , G. Güntherodt

Producción científica: Articlerevisión exhaustiva

Resumen

We present polarized Raman spectra of nearly optimally doped single crystals of Tl2Ba2CuO6 (Tc=80K and 90K). The peak positions in the B1g component of the electronic Raman scattering are found at 460cm−1 (T c =90K), or 430cm−1 (T c =80K) which corresponds to 2Δ max /κ B T C =7.6 ± 0.4. The A1g - and B2g -symmetry components show smaller values for the peak positions and decrease linearly inw toward lower frequencies while the B1g scattering component shows a decrease cubic inw. The temperature dependence of the B1g scattering component reveals a deviation from BCS behavior. Experimental data are explained on the basis of a dx 2−y2-wave symmetry of the order parameter.
Idioma originalAmerican English
PublicaciónCzechoslovak Journal of Physics
Volumen46
DOI
EstadoPublished - feb 1 1996
Publicado de forma externa

Disciplines

  • Atomic, Molecular and Optical Physics
  • Physics
  • Quantum Physics

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