Superconducting transition of single-crystal tin microstructures

K. Yu Arutyunov*, T. V. Ryynänen, J. P. Pekola, A. B. Pavolotski

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number092506
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B
Volume63
Issue number9
DOIs
Publication statusPublished - 8 Feb 2001
MoE publication typeA1 Journal article-refereed

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