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Electronic structure of a superconducting Bi2212 crystal by angle resolved ultra violet photoemission |
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| Authors: | N L Saini J Kanski P Srivastava L Ilver K B Garg S Durcok |
| Institution: | 1. Department of Physics, University of Rajasthan, 302 004, Jaipur, India 2. Department of Physics, Chalmers University of Technology, S-412 96, G?teborg, Sweden 3. Institute of Physics CSAV, PRAHA 6, 10016200, Cukrovarnicka, Czechoslovakia |
| Abstract: | The electronic structure of a high quality superconducting Bi2Sr2CaCu2O8+δ (Bi2212) single crystal is studied by angle resolved ultra violet photoemission (ARUPS) using He I (21.2 eV). Our results appear to show two bands crossing the Fermi level in ΓX direction of the Brillouin zone as reported by Takahashiet al. The bands at higher binding energy do not show any appreciable dispersion. The nature of the states near the Fermi level is discussed and the observed band structure is compared with the band structure calculations. |
| Keywords: | Electronic structure superconductivity photoemission spectroscopy |
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