scholarly journals Aspects of the normal state resistivity of cuprate superconductors

2020 ◽  
Vol 101 (11) ◽  
Author(s):  
B. Sriram Shastry ◽  
Peizhi Mai
Keyword(s):  
Normal State ◽  
Cuprate Superconductors ◽  
Normal State Resistivity

STABLE hc/e VORTICES IN SUPERCONDUCTORS WITH SPIN-CHARGE SEPARATION

1992 ◽  
Vol 06 (05n06) ◽  
pp. 509-526
Author(s):  
Subir Sachdev
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Normal State ◽  
Phenomenological Model ◽  
Charge Separation ◽  
Cuprate Superconductors ◽  
Superconducting Phase ◽  
Low Energy ◽  
Large N ◽  
Normal State Properties

A phenomenological model, F, of the superconducting phase of systems with spin-charge separation and antiferromagnetically induced pairing is studied. Above Hc1, magnetic flux can always pierce the superconductor in vortices with flux hc/2e, but regimes are found in which vortices with flux hc/e are preferred. Little-Park and other experiments, which examine periodicities with a varying magnetic field, always observe a period of hc/2e. The low energy properties of a symplectic large-N expansion of a model of the cuprate superconductors are argued to be well described by F. This analysis and some normal state properties of the cuprates suggest that hc/e vortices should be stable at the lowest dopings away from the insulating state at which superconductivity first occurs.

Correlation between superconducting critical temperature and normal-state resistivity parameters from the codopedErBa2Cu3−x−yZnxFeyO7−δsystem

2000 ◽  
Vol 61 (17) ◽  
pp. 11752-11761 ◽  
Author(s):  
Anurag Gupta ◽  
Ratan Lal ◽  
A. Sedky ◽  
A. V. Narlikar ◽  
V. P. S. Awana
Keyword(s):  
Critical Temperature ◽  
Normal State ◽  
Normal State Resistivity

Systematic variation for the temperature dependence of normal-state resistivity in (La1−xBax)2CuO4 system

1991 ◽  
Vol 185-189 ◽  
pp. 1239-1240 ◽  
Author(s):  
Shoichi Nagata ◽  
Mikio Nakajima ◽  
Kan-ichi Kido ◽  
Toshimi Ikeda ◽  
Susumu Chikazawa
Keyword(s):  
Temperature Dependence ◽  
Normal State ◽  
Systematic Variation ◽  
Normal State Resistivity

Thin amorphous superconducting niobium-silicon films with high normal state resistivity

1990 ◽  
Vol 165-166 ◽  
pp. 1525-1526 ◽  
Author(s):  
H.S.J. van der Zant ◽  
J.F. Jongste ◽  
H.W. Zandbergen ◽  
J.E. Mooij
Keyword(s):  
Normal State ◽  
Silicon Films ◽  
Normal State Resistivity

Superconducting (YBaCuO)–(CuO)–Ag composites

1989 ◽  
Vol 4 (4) ◽  
pp. 802-805 ◽  
Author(s):  
Yi Song ◽  
Yue Cao ◽  
Anupam Misra ◽  
J. R. Gaines
Keyword(s):  
Mechanical Properties ◽  
Critical Current Density ◽  
Copper Oxide ◽  
Current Density ◽  
Normal State ◽  
Liquid Nitrogen Temperature ◽  
Substantial Improvement ◽  
Metallic Silver ◽  
Normal State Resistivity ◽  
Ceramic Superconductors

We have fabricated superconducting composites composed of Y1Ba2Cu3O7–δ, copper oxide, and metallic silver. Sharp superconducting transitions were observed well above the liquid nitrogen temperature. The normal state resistivity of these composites was much lower than that of the pure ceramic Y1Ba2Cu3O7–δ. The critical current density was measured and it was comparable to that of ceramic superconductors. A substantial improvement of the mechanical properties has been achieved over those of the ceramic Y1Ba2Cu3O7–δ material.

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