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Proceedings Paper

Investigation of low-energy electronic response in high-Tc superconductors by Raman spectroscopy
Author(s): Akio Yamanaka; Norio Asayama; Takashi Furutani; Kuon Inoue; Shunji Takekawa
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Paper Abstract

Low-energy electronic response due to single-particle excitations has been investigated in high-Tc copper-oxide Bi2Sr2CaCu2O8+(delta ) single-crystals by Raman scattering spectroscopy. We find that the low-energy electronic response in the superconducting phase depends significantly on polarization configuration. For tetragonal B1g the suppression of the low-energy spectral weight of the electronic continuum due to an opening of the superconducting gap occurs abruptly below Tc, whereas that of the B2g-response shows a gradual temperature dependence. The symmetry-dependent superconducting response is basically consistent with the superconducting order parameter having a nodal structure with X2-Y2 symmetry.

Paper Details

Date Published: 10 June 1996
PDF: 8 pages
Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); doi: 10.1117/12.241779
Show Author Affiliations
Akio Yamanaka, Hokkaido Univ. (Japan)
Norio Asayama, Hokkaido Univ. (Japan)
Takashi Furutani, Hokkaido Univ. (Japan)
Kuon Inoue, Hokkaido Univ. (Japan)
Shunji Takekawa, National Institute for Research in Inorganic Materials (Japan)


Published in SPIE Proceedings Vol. 2696:
Spectroscopic Studies of Superconductors
Ivan Bozovic; Dirk van der Marel, Editor(s)

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