Evidence for suppression of superconductivity by spin imbalance in Co-Al-Co single-electron transistors

C. D. Chen, Watson Kuo, D. S. Chung, J. H. Shyu, C. S. Wu

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Abstract

The superconducting gap suppression under spin-polarized quasiparticle currents in ferromagnet-superconductor-ferromagnet single-electron transistors was reported. The superconducting gap was measured as a function of magnetic field. The superconducting gap was found to be strongly suppressed by polarized quasiparticle injection from the ferromagnetic leads if the magnetizations of the two leads were misaligned.

Original languageEnglish
Article number047004
Pages (from-to)470041-470044
Number of pages4
JournalPhysical Review Letters
Volume88
Issue number4
Publication statusPublished - 2002 Jan 28

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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