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Journal of Superconductivity

, Volume 18, Issue 4, pp 499–502 | Cite as

CrO2/Ag/YBCO Interface Study with a Flip-Chip Configuration

  • Z. Y. Chen
  • Amlan Biswas
  • J. C. Read
  • S. B. Ogale
  • R. L. Greene
  • T. Venkatesan
  • A. Gupta
  • A. Anguelouch
  • G. Xiao
Article

Transport across a CrC2/Ag/YBCO interface was studied using a flip-chip configuration. The results were interpreted in the Andreev reflection scenario. It is shown that the surface spin-polarization of CrO2 film, even after exposing to air, remained close to 100% to the T c of YBa2Cu3O7− x , a temperature limited by this method.

KEY WORDS:

CrO2 half metallic material tunneling junction spin-polarization Andreev bound states Flip-Chip configuration Andreev reflection scenario YBCO 

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • Z. Y. Chen
    • 1
    • 4
  • Amlan Biswas
    • 1
  • J. C. Read
    • 1
  • S. B. Ogale
    • 1
  • R. L. Greene
    • 1
  • T. Venkatesan
    • 1
    • 5
  • A. Gupta
    • 2
  • A. Anguelouch
    • 3
  • G. Xiao
    • 3
  1. 1.Center for Superconductivity Research, Department of PhysicsUniversity of MarylandCollege ParkUSA
  2. 2.IBM T. J. Watson Research CenterYorktown HeightsUSA
  3. 3.Department of PhysicsBrown UniversityProvidenceUSA
  4. 4.Pixelligent Technologies, LLCCollege ParkUSA
  5. 5.Department of Electrical EngineeringUniversity of MarylandCollege ParkUSA

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