Kosterlitz-Thouless transition and charge redistribution in the superconductivity of YBCO/PBCO superlattices

Mark Rasolt; Taner Edis; Zlatko Tešanović

doi:10.1103/PhysRevLett.66.2927

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Kosterlitz-Thouless transition and charge redistribution in the superconductivity of YBCO/PBCO superlattices

Mark Rasolt, Taner Edis, Zlatko Tešanović

DOI 10.1103/PhysRevLett.66.2927 · Physical Review Letters

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Abstract

Recent experimental measurements of the resistive transition in YBa2Cu3O7−x/PrBa2Cu3O7−x superlattices show a dramatic suppression in the resistive transition temperature Tc as the thickness of the Pr layer increases while the thickness of the Y layer decreases. We show that the qualitative features of these experiments (and in particular most of the suppression in Tc) can be accounted for within the Kosterlitz-Thouless theory. A small further suppression in Tc is shown to occur due to charge transfer from Y to the Pr layers.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	15	Pressure not reported	unknown
YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	46	Pressure not reported	unknown
YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	70	Pressure not reported	unknown
YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	86	Pressure not reported	unknown