Investigation of low-energy electronic response in high-{Tc} superconductor by Raman spectroscopy
- Hokkaido Univ., Sapporo (Japan). Research Inst. for Electronic Science
- National Inst. for Research in Inorganic Materials, Tsukuba (Japan)
Low-energy electronic response due to single-particle excitations has been investigated in high-{Tc} copper-oxide Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} single-crystals by Raman scattering spectroscopy. The authors find that the low-energy electronic response in the superconducting phase depends significantly on polarization configuration. For tetragonal B{sub 1g} 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 B{sub 2g}-response shows a gradual temperature dependence. The symmetry-dependent superconducting response is basically consistent with the superconducting order parameter having a nodal structure with X{sup 2}-Y{sup 2} symmetry.
- OSTI ID:
- 538211
- Report Number(s):
- CONF-960163-; ISBN 0-8194-2070-0; TRN: 97:018594
- Resource Relation:
- Conference: Photonics West `96: conference on quantum well and superlattice physics VI, San Jose, CA (United States), 27 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Spectroscopic studies of superconductors. Part A: Infrared and Raman spectra; Bozovic, I.; Marel, D. van der [eds.]; PB: 337 p.; Proceedings/SPIE, Volume 2696
- Country of Publication:
- United States
- Language:
- English
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