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Title: Materials News: Interfacial chemistry and atomic arrangement of ZrO{sub 2} − La{sub 2/3}Sr{sub 1/3}MnO{sub 3} pillar-matrix structures

We studied ZrO{sub 2} − La{sub 2/3}Sr{sub 1/3}MnO{sub 3} pillar–matrix thin films which were found to show anomalous magnetic and electron transport properties. With the application of an aberration-corrected transmission electron microscope, interfacial chemistry, and atomic-arrangement of the system, especially of the pillar–matrix interface were revealed at atomic resolution. Minor amounts of Zr were found to occupy Mn positions within the matrix. The Zr concentration reaches a minimum near the pillar–matrix interface accompanied by oxygen vacancies. La and Mn diffusion into the pillar was revealed at atomic resolution and a concomitant change of the Mn valence state was observed.
Authors:
; ; ; ;  [1] ;  [2] ;  [3]
  1. Max Planck Institute for Intelligent Systems, Stuttgart Center for Electron Microscopy, Heisenbergstrasse 3, 70569 Stuttgart (Germany)
  2. JEOL Ltd., 1-2 Musashino, 3-Chome Akishima, 196-8558 Tokyo (Japan)
  3. Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
22415234
Resource Type:
Journal Article
Resource Relation:
Journal Name: APL materials; Journal Volume: 2; Journal Issue: 12; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CONCENTRATION RATIO; DIFFUSION; ELECTRONS; INTERFACES; LANTHANUM COMPOUNDS; MAGNETORESISTANCE; MANGANATES; MATRIX MATERIALS; OXYGEN; STRONTIUM COMPOUNDS; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY; VACANCIES; VALENCE; ZIRCONIUM OXIDES