Superconducting transition of single-crystal tin microstructuresстатья
Статья опубликована в высокорейтинговом журнале
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Web of Science
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Single-crystal superconducting microstructures have been fabricated. The resistances of tin whiskers were measured in a multiprobe configuration. Contacts were made of copper, gold, or niobium films using e-beam lithography followed by a lift-off process. Structures with normal metal probes showed unusual behavior: below the critical temperature of bulk tin, the resistance decreases in distinct steps and does not reach zero even when cooled down to 1 K. The origin of these phenomena is not clear but is likely related to a proximity effect.