Reflections on the superconductor-insulator transition |
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| Affiliation: | Depts. of Applied Physics and Physics Stanford University, Stanford, CA 94305, U.S.A. |
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| Abstract: | The anomalously long superconducting coherence lengths observed in YBCO/PBCO multilayers are interpreted in terms of a boson localization picture for the superconductor-insulator transition in YBCO as Pr is substituted for Y. It is suggested that the combination of finite vortex mass and reduced superfluid density for the proximity-induced order parameter in PBCO should lead to enhanced quantum creep in these multilayer samples. |
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