Electronic disorder, gap states, orbital depairing, and dynamics of percolative superconductors near Tc

J. C. Phillips

doi:10.1103/PhysRevB.43.11415

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Electronic disorder, gap states, orbital depairing, and dynamics of percolative superconductors near Tc

J. C. Phillips

DOI 10.1103/PhysRevB.43.11415 · Physical Review B

T1

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Abstract

A theory based on local energy gaps and local gap states explains entropy transport observed by Palstra et al. in YBa2Cu3O7 single crystals in crossed electric and magnetic fields above Tc. The theory also suggests that many of the reversible dissipative effects observed below Tc and conventionally ascribed solely to free vortex motion (flux flow) may have a more complex microscopic origin. The observation of entropy transport above Tc provides fundamental evidence for the microscopic separability of localized and extended states.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	88	Pressure not reported	unknown
YBa2Cu3O6.9 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown