Effect of Radiation-Induced Oxygen Disorder on the Superconducting Transition Temperature in YBa2Cu3O7 Superconductors

Raju P. Gupta; Michèle Gupta

doi:10.1103/PhysRevLett.77.3216

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Effect of Radiation-Induced Oxygen Disorder on the Superconducting Transition Temperature in YBa2Cu3O7 Superconductors

Raju P. Gupta, Michèle Gupta

DOI 10.1103/PhysRevLett.77.3216 · Physical Review Letters

T1

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Abstract

It is shown that the oxygen displacement from the CuO2 planes in YBa2Cu3O7 results in a significant depletion of the hole density and the local disruption of the electronic integrity around the Cu(2) sites. These additional mechanisms need to be considered along with the usual pair breaking theory for a proper understanding of the degradation of Tc under electron irradiation.

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.	90	Pressure unresolved	unknown
YBa2Cu3O6.5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	55	Pressure not reported	unknown