Nanoscale analysis of YBa2Cu3O7-x/La 0.67Ca0.33MnO3 interfaces

Maria Varela, Andrew R. Lupini, Stephen J. Pennycook, Zouhair Sefrioui, Jacobo Santamaria

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

The structure of interfaces in superconducting/ferromagnetic YBa 2Cu3O7-x/La0.67Ca 0.33MnO3 superlattices has been analyzed by scanning transmission electron microscopy and high spatial resolution electron energy loss spectroscopy. Individual layers are flat over long lateral distances. The interfaces are coherent, free of defects, exhibiting no roughness, and are located at the BaO plane of the superconductor. Concerning chemical disorder, EELS measurements show the absence of measurable chemical interdiffusion within experimental error bars.

Original languageEnglish
Pages (from-to)2245-2248
Number of pages4
JournalSolid-State Electronics
Volume47
Issue number12
DOIs
StatePublished - Dec 2003

Funding

Research performed as a Eugene P. Wigner Fellow and staff member (MV) at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the US Department of Energy under Contract DE-AC05-00OR22725. Financial support from CAM 07N/0008/2001 and Fundación Ramón Areces is acknowledged as well.

Keywords

  • Electron microscopy
  • High T superconductivity
  • Interfaces
  • Manganites
  • Superlattices

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