Published January 15, 2008 | Version v1
Journal article

Fluctuation and higher temperature superconductivity in lighter element systems

  • 1. Laboratory of Atomic and Solid State Physics, Cornell University, 615 Clark Hall, Ithaca, NY 14853-2501 (United States)

Description

A charged, near degenerate quantum fluid, necessarily inhomogeneous by virtue of the presence of a dynamic and more massive compensating charge distribution (itself possessing internal structure composed in part of the same particles constituting the putative quantum fluid) is found to exhibit a liquid-liquid phase transition as temperature is lowered. The ensuing low temperature phase is dissipationless and in spite of long-ranged attractions between the quantum fluid and the compensating system, no energy transfer proceeds between the two. The quantum fluid in question is electronic in origin; the emerging state is, of course, one of superconductivity or superdiamagnetism and its lack of dissipation is entirely consistent with the existence of an energy gap in the spectrum of excitations of the quantum fluid. The degeneracy temperature of the quantum fluid originates with valence electrons, and ranges from 104 to 105 K. There is vast flexibility in the choice of structure, the degree of complexity of the compensating system, and of its dynamics. Acknowledging fluctuations in both itinerant and localized charge, is it therefore possible that systems can be found where the liquid-liquid transition of interest here can be found at significant temperatures, perhaps even near room temperature? In this quest it appears that the light elements in combination continue to offer considerable promise

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physc.2007.08.016

Additional details

Identifiers

DOI
10.1016/j.physc.2007.08.016;
PII
S0921-4534(07)01322-6;

Publishing Information

Journal Title
Physica. C, Superconductivity
Journal Volume
468
Journal Issue
2
Journal Page Range
p. 115-125
ISSN
0921-4534
CODEN
PHYCE6

Optional Information

Copyright
Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.