Pure dx squared-y squared order-parameter symmetry in the tetragonal superconductor TI sub 2 Ba sub 2 Cu0 sub 6 + delta
Article Abstract:
Knowledge of the symmentry of the order parameter to describe electron pairing in the superconducting state is important to the development of theoretical models for high temperature superconductivity. An experiment is described studying the single-layer tetragonal superconductor TI sub 2 Ba sub 2 Cu0 sub 6 + delta. The results showed that the material has pure dx squared-y squared pairing symmetry, providing further understanding of the more complicated mixed s + d state appearing in other high temperature superconductors.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Symmetry of the order parameter in the high-Tc superconductor YBa2Cu3O7-delta
Article Abstract:
Constraints on the pairing symmetry, a superconducting order parameter, is obtained by the use of the half-integer flux quantization in superconducting rings having three grain-boundary Josephson junctions. The constraints reduce the various ways in which the Cooper pairs are formed in the high temperature superconductor YBa2Cu3O(7-delta). This parameter depends on the direction of the crystal phase isotropy.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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High current densities above 100 K in the high-temperature superconductor HgBa2CaCu2O6 + delta
Article Abstract:
Experimental studies reveal that high temperatures support large in-plane current densities in high-quality c-axis-oriented epitaxial films of the superconductor, HgBa2CaCu2O(6 + delta). The critical current density of this superconductor at 110 K is significantly higher than that of the Bi- or Tl-based superconductors. Intrinsic pinning in this superconductor accounts for the high critical current density.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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