Electronic phase separation near the superconductor-insulator transition of Nd1+xBa2−xCu3O7−δ thin films studied by an electric-field-induced doping effect
M. Salluzzo, A. Gambardella, G. M. De Luca, R. Di Capua, Z. Ristic, R. Vaglio
DOI 10.1103/PhysRevB.78.054524 · Physical Review B
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Abstract
We report a detailed study of the transport properties of Nd1+xBa2−xCu3O7−δ thin films with doping changed by field effect. The data cover the whole superconducting to insulating transition and show remarkable similarities with the effect of chemical doping in high critical temperature superconductors. The results suggest that the add-on of carriers is accompanied by an electronic phase separation, independent on the details of the doping mechanism.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NdBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10 | Pressure not reported | onset |
| NdBCO Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 25 | Pressure not reported | onset |
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