Raman Scattering Study of (Sr,Ca)_{10}Cu_{17}O_{29} Single Crystals

• Authors: J. Strzeszewski , H. Szymczak , L. Leonyuk , R. Szymczak
• Languages of publication: EN

Abstracts

EN

Polarized Raman spectra of high temperature superconducting single crystals of A_{10}Cu_{17}O_{29} (A_{10}=Ca_{4.7}Sr_{4.1}Bi_{0.3}) were studied in various scattering configurations in the range of 40-700cm^{-1}. In very distinctive spectra there were found over 20 peaks. It was observed that the flat continuum of electronic excitations in the normal state was redistributed below the critical temperature. The frequency dependent redistribution is consistent with the value of energy gap estimated using tunnelling spectroscopy techniques.

Keywords

EN

78.30.Hv; 74.25.Gz; 74.25.-q

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 98
• Issue: 4
• Pages: 429-439

Dates

published

2000-10

received

2000-09-04

Contributors

author

J. Strzeszewski

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-661 Warsaw, Poland

author

H. Szymczak

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland

author

L. Leonyuk

• Geological Department, Moscow State University, 119899 Moscow, Russia

author

R. Szymczak

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland