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Flux motion and dissipation in high-temperature superconductors

Description: The effects on flux motion and dissipation of interlayer coupling of the Cu-O planes along the c-axis are considered for the high- temperature superconductors (HTS). It is argued that for the highly-anisotropic HTS, the weak interlayer coupling plays a dominant role that can be described by incoherent Josephson tunneling between superconducting Cu-O bi- or tri-layers. In YBa{sub 2}Cu{sub 3}O{sub 7}, the layers are strongly coupled, presumably because the conducting Cu-O chains short circuit the… more
Date: August 1, 1991
Creator: Gray, K.E. & Kim, D.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Atomic physics tests of quantum electrodynamics. [Bound systems, free electron and muon magnetic moments, Josephson effect]

Description: The tests of quantum electrodynamics derived from bound systems and the free electron and muon magnetic moments are reviewed. The emphasis is on the areas in which recent developments in theory or experiment have taken place. Also determinations of the fine structure constant from the Josephson effect and the fine structure of helium are discussed. (JFP)
Date: August 1, 1976
Creator: Mohr, P. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Superconductivity: Phenomenology

Description: This document discusses first the following topics: (a) The superconducting transition temperature; (b) Zero resistivity; (c) The Meissner effect; (d) The isotope effect; (e) Microwave and optical properties; and (f) The superconducting energy gap. Part II of this document investigates the Ginzburg-Landau equations by discussing: (a) The coherence length; (b) The penetration depth; (c) Flux quantization; (d) Magnetic-field dependence of the energy gap; (e) Quantum interference phenomena; and (f… more
Date: August 1, 1988
Creator: Falicov, L.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Magnetoresistance peak in the mixed state of the organic superconductor {kappa}-(BEDT-TTF){sub 2}Cu[N(CN){sub 2}]Br

Description: In this letter, the authors report transport measurements with field and current parallel to the b axis (perpendicular to the conducting plane) in the organic superconductor {kappa}-(BEDT-TTF){sub 2}Cu[N(CN){sub 2}]Br. The isothermal magnetoresistance R(H) displays a peak effect as a function of field. The peak resistance is substantially larger than that in large fields. The results are in sharp contrast to the conventional dissipation mechanisms in the mixed state of anisotropic superconducto… more
Date: August 1, 1997
Creator: Zuo, F.; Schlueter, J. A. & Williams, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electromagnetic and microstructural properties of pure c-axis twist Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} bicrystal junctions

Description: Bulk Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} (Bi2212) bicrystals containing a single high quality [001] twist grain boundary junction were prepared in order to investigate the orbital symmetry of the superconducting order parameter in highly anisotropic Bi-based high temperature superconductors. The misorientation angles of the bicrystals ranged from 0 to 180{degree}. The microstructure in the vicinity of the junction was characterized using high-resolution, nano-probe analytical microsco… more
Date: August 1, 1998
Creator: Tsay, Y. N.; Li, Q.; Zhu, Y.; Suenaga, M.; Gu, G. D. & Koshizuka, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Giant magnetoresistance in organic superconductors {kappa}-(BEDT-TTF){sub 2}Cu(NCS){sub 2}

Description: In this letter, the authors report transport measurements with field and current parallel to the {alpha} axis (perpendicular to the conducting plane) in the organic superconductor {kappa}-(BEDT-TTF){sub 2}Cu(NCS){sub 2}. The magnetoresistance displays a peak effect as a function of field and temperature with the peak fields increasing linearly with decreasing temperatures. The peak resistance is found to be greater than the normal state value extrapolated from both high and low field measuremen… more
Date: August 1, 1997
Creator: Zuo, F.; Schlueter, J. A.; Kelly, M. E. & Williams, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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