Thickness-tuned Superconductor-to-Insulator Transitions under magnetic field in a-NbSi - Condensed Matter > SuperconductivityReportar como inadecuado




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Abstract: We have studied the thickness-induced superconductor-to-insulator transitionin the presence of a magnetic field for a-NbSi thin films. Analyzing thecritical behavior of this system within the -dirty boson model-, we have founda critical exponents product of $ u d z$ > 0.4. The corresponding phasediagram in the H,d plane is inferred. This small exponent product as well asthe non-universal value of the critical resistance found at the transition callfor further investigations in order to thoroughly understand these transitions.



Autor: C.A. Marrache-Kikuchi, H. Aubin, A. Pourret, K. Behnia, J. Lesueur, L. Berge, L. Dumoulin

Fuente: https://arxiv.org/







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