High-Tc superconductors, physics, and applications

Julien Bok

doi:10.1117/12.24447

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1 February 1991 High-T_c superconductors, physics, and applications

Julien Bok

Proceedings Volume 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications; (1991) https://doi.org/10.1117/12.24447
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications, 1990, Aachen, Germany

Abstract

High-Tc superconductor cuprates are reviewed in terms of available materials, theoretical modeling, and properties such as the relationship between Tc and hole density in the Cu-O planes. The structures are delineated for compounds including Tl2Ba2Cu1O6, Tl2Ca1Ba2Cu2O8, and Tl2Ca2Ba2Cu3O10. Specific attention is given to the key effects of grain boundaries on the physical properties of polycrystals. The superconductivity of the compounds is related to the electron (hole) pairs, and an energy gap is identified for the excitation of normal (dissipating) carriers. The penetration depth of the magnetic fields and the coherence length of the spatial extension of a Cooper pair are the primary highly anisotropic characteristics of the superconductors. The high-Tc superconductors have a variety of applications in microelectronics and optoelectronics such as Josephson junctions, the manufacturing of passive microwave devices, and the construction of superlattices.

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Julien Bok "High-T_c superconductors, physics, and applications", Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); https://doi.org/10.1117/12.24447

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