Atomic-layer engineering of oxide superconductors

A. T. Bollinger, J. N. Eckstein, G. Dubuis, D. Pavuna, I. Božović

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Molecular beam epitaxy technique has enabled synthesis of atomically smooth thin films, multilayers, and superlattices of cuprates and other complex oxides. Such heterostructures show high temperature superconductivity and enable novel experiments that probe the basic physics of this phenomenon. For example, it was established that high temperature superconductivity and anti-ferromagnetic phases separate on Ångström scale, while the pseudo-gap state apparently mixes with high temperature superconductivity over an anomalously large length scale (the "Giant Proximity Effect"). We review some recent experiments on such films and superlattices, including X-ray diffraction, atomic force microscopy, angle-resolved time of flight ion scattering and recoil spectroscopy, transport measurements, highresolution transmission electron microscopy, resonant X-ray scattering, low-energy muon spin resonance, and ultrafast photo-induced reflection high energy electron diffraction. The results include an unambiguous demonstration of strong coupling of in-plane charge excitations to out-of-plane lattice vibrations, a discovery of interface high temperature superconductivity that occurs in a single CuO 2 plane, evidence for local pairs, and establishing tight limits on the temperature range of superconducting fluctuations.

Original languageEnglish (US)
Title of host publicationOxide-Based Materials and Devices III
DOIs
StatePublished - 2012
EventOxide-Based Materials and Devices III - San Francisco, CA, United States
Duration: Jan 22 2012Jan 25 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8263
ISSN (Print)0277-786X

Other

OtherOxide-Based Materials and Devices III
Country/TerritoryUnited States
CitySan Francisco, CA
Period1/22/121/25/12

Keywords

  • cuprates
  • field effect
  • interface
  • superconductivity
  • superlattice

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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