Transport through a 2DEG channel with superconducting boundaries

J. Nitta, B. J. Van Wees, J. P. Heida, T. M. Klapwijk, A. Dimoulas, W. Van De Graaf, G. Borghs

Research output: Contribution to journalArticlepeer-review

Abstract

We have investigated transport through a channel with superconducting boundaries where electrons are confined by Andreev reflection. Superconducting phase-sensitive transport is discussed using qualitative arguments. The transfer resistance Rt through the channel as well as the resistance Ri between the injector and the channel have been measured as a function of the phase difference φ between the superconducting boundaries. It is not yet clear that the observed oscillation in resistance can be attributed to quasi-particle phase-sensitive transport. The oscillation amplitude in Rt due to the transmitted current modulation is less than 0.1% in this experiment.

Original languageEnglish
Pages (from-to)320-323
Number of pages4
JournalSurface Science
Volume361-362
DOIs
Publication statusPublished - 1996 Jul 20
Externally publishedYes

Keywords

  • Electrical transport
  • Electrical transport measurements
  • Indium arsenide
  • Niobium
  • Quantum effects
  • Quantum wells
  • Semiconductor-superconductor interfaces
  • Superconductivity

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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