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  • 1
    Electronic Resource
    Electronic Resource
    Fabrication of bulk superconductors YBa2Cu3−xTexO7−δ with highly oriented layer structure using the melt-texture growth process (1993)
    Springer
    Journal of superconductivity 6 (1993), S. 27-35 
    Details
    ISSN: 1572-9605
    Keywords: Superconductivity ; YBa2Cu3−x Te x O7−δ ; melt-texture growth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract We report on the successful fabrication of bulk samples satisfying the nominal composition YBa2Cu3−x Te x O7−δ and containing highly single-crystal-like texture. While this type of crystal growing process is not new, our process requires only the existence of spatial temperature gradient in some parts of the common tube furnace. The samples with tellurium were found to be much more stable and better superconductors than the Y-123 specimen. Large layer textures with cross-section ∼50×500μm2 were observed to grow inside the usual bulk sample. The critical currents were measured by the d.c. magnetization method and found to be easily greater than 6000 A cm−2 for the samples with Te.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00618502
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Investigation of the Off-Diagonal Thermoelectric Effect on Textured YBa2Cu3O7−δ (1998)
    Springer
    Journal of superconductivity 11 (1998), S. 203-207 
    Details
    ISSN: 1572-9605
    Keywords: Thermoelectricity ; high-T c texture superconductor ; anisotropy ; oxygen content
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Both the off-diagonal Seebeck effect and the off-diagonal Peltier effect were investigated on the same textured sample YBa2Cu3O7−δ and with the use of the same experimental setup. The effectiveness of several kinds of heat-conductive media was studied for the measurement. The flatness of both the sample and the heat-conducting block, and the matching between them were found very important for the reduction of the heat resistance of the interfaces. A reasonable agreement was found between the off-diagonal Seebeck coefficient measured by the off-diagonal Seebeck effect and that by the off-diagonal Peltier effect. The steplike feature in the relation between the off-diagonal Seebeck coefficient and the annealing temperature may imply a nonmonotonous change of the Seebeck coefficient along the c axis (S c) with oxygen content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022663313363
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    Paper (German National Licenses)
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