Article

Correct Nature of High-Temperature Superconductivity

Arizona State University Department of Physics Tempe AZ 85287 USA; Institute for Postdoctoral Studies 6031 East Cholla Lane Scottsdale AZ 85253 USA; Physikon Research Corporation Lynden WA 98264 USA; University of Notre Dame Department of Physics Notre Dame IN 46556 USA
Journal of Superconductivity and Novel Magnetism (impact factor: 0.65). 12/2008; 22(1):29-31. DOI:10.1007/s10948-008-0368-2 pp.29-31

ABSTRACT The correct nature of high-T
C superconductivity is outlined: (i) the cuprates do not superconduct in their cuprate-planes, but in their BaO, SrO, or interstitial-oxygen
regions; (ii) doped Ba2YRuO6 and Sr2YRuO6, ruthenates without cuprate-planes, superconduct in their BaO or SrO layers; (iii) the rutheno-cuprates GdSr2Cu2RuO8 and Gd2−z
Ce
z
Sr2Cu2RuO10 have cuprate-planes which do not superconduct, but superconduct in their SrO layers; (iv)LaFeAsO1−x
F
x
superconducts via its oxygen ions, as do related compounds; and (v) the organic compound κ-[BEDT-TTF]2Cu[NCS]2 superconducts along the S chains of the molecule. In YBa2Cu3O7, the superconductivity is consistent with observations by positive muon spin rotation and with analyses indicating an absence
of Cu d-band contribution to the superconductivity. Hence only, the BaO layer superconducts. The superconductivity is s-wave in character (not d-wave), once fluxon depinning has been properly accounted for. The superconducting BaO layers are p-type and adjacent to the n-type cuprate-planes. The hole-pairing is not phononic, but Coulombic. Many experiments can be explained by understanding
the characteristics of the high-T
C mechanism, which contradicts the theories with d-wave superconductivity in the cuprate-planes.

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Keywords

adjacent
 
BaO layer superconducts
 
correct nature
 
Coulombic
 
Cu d-band contribution
 
cuprate-planes
 
d-wave superconductivity
 
n-type cuprate-planes
 
observations
 
organic compound κ-[BEDT-TTF]2Cu[NCS]2 superconducts
 
oxygen ions
 
positive muon
 
rotation
 
ruthenates
 
rutheno-cuprates GdSr2Cu2RuO8
 
SrO
 
SrO layers
 
superconducting BaO layers
 
superconductivity
 
theories