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Insights in High-Temperature Superconductivity from the Study of Films and Heterostructures Synthesized by Molecular Beam Epitaxy

  • Ivan Božović
  • Adrian Gozar
  • Gennady Logvenov
  • Anthony Bollinger
  • Natasha Božović
  • Zoran Radović
Original Paper

Abstract

Using molecular beam epitaxy, we synthesize atomically smooth thin films, multilayers and superlattices of cuprate high-temperature superconductors (HTS). Such heterostructures enable novel experiments that probe the basic physics of HTS. For example, we have established that HTS and antiferromagnetic phases separate on Ångstrom scale, while the pseudo-gap state apparently mixes with HTS over an anomalously large length scale (“Giant Proximity Effect”). Here, we briefly review our most recent experiments on such films and superlattices. The new results include an unambiguous demonstration of strong coupling of in-plane charge excitations to out-of-plane lattice vibrations and the discovery of interface HTS.

Keywords

Cuprate films Interface superconductivity Strong electron–lattice coupling 

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Ivan Božović
    • 1
  • Adrian Gozar
    • 1
  • Gennady Logvenov
    • 1
  • Anthony Bollinger
    • 1
  • Natasha Božović
    • 1
    • 2
  • Zoran Radović
    • 1
    • 3
  1. 1.Department of Condensed Matter Physics and Materials ScienceBrookhaven National LaboratoryUptonUSA
  2. 2.Department of MathematicsSan Jose State UniversitySan JoseUSA
  3. 3.Department of PhysicsUniversity of BelgradeBelgradeSerbia

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