Nucleation of superconductivity in mesoscopic star-shaped superconductors

D. A. Dikin*, V. Chandrasekhar, V. R. Misko, V. M. Fomin, J. T. Devreese

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We study the phase transition of a star-shaped superconductor, which covers smoothly the range from zero to two dimensions with respect to the superconducting coherence length ξ (T). Detailed measurements and numerical calculations show that the nucleation of superconductivity in this device is very inhomogeneous: the superconducting order parameter is strongly enhanced and mostly robust in regions close to multiple boundaries. The strong inhomogeneity of the order parameter results in a rich structure of the superconducting transition as a function of temperature and magnetic field.

Original languageEnglish (US)
Pages (from-to)231-235
Number of pages5
JournalEuropean Physical Journal B
Volume34
Issue number2
DOIs
StatePublished - Jul 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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