A variational approach is used to study the superconductor-insulator transition in two-band granular superconducting films using a resistance-shunted Josephson junction array model. We show the plausible existence of a zero-temperature metallic phase between the superconducting and insulator phases which is absent in normal single band granular superconducting films. The metallic phase may be observable in some dirty pnictide superconductor films.
| Date of Award | 2012 |
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| Original language | English |
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| Awarding Institution | - The Hong Kong University of Science and Technology
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The study of granular two-band superconducting films
Yan, B. (Author). 2012
Student thesis: Master's thesis