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Title: Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO{sub 3}(001) Substrates

Abstract

We present an extended synchrotron x-ray scattering study of the structure of thin manganite films grown on SrTiO{sub 3}(001) substrates and reveal a new kind of misfit strain relaxation process which exploits twinning to adjust lattice mismatch. We show that this relaxation mechanism emerges in thin films as one-dimensional twinning waves which freeze out into a twin domain pattern as the manganite film continues to grow. A quantitative microscopic model which uses a matrix formalism is able to reproduce all x-ray features and provides a detailed insight into this novel relaxation mechanism. We further demonstrate how this twin angle pattern affects the transport properties in these functional films.

Authors:
; ; ; ;  [1]; ;  [2]
  1. Max-Planck-Institut fuer Metallforschung, Heisenbergstrasse 3, 70569 Stuttgart (Germany)
  2. Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, 70569 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
20957708
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevLett.98.096101; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTAL DEFECTS; FREEZING OUT; PERIODICITY; RELAXATION; STRONTIUM TITANATES; SUBSTRATES; SYNCHROTRONS; THICKNESS; THIN FILMS; X-RAY DIFFRACTION

Citation Formats

Gebhardt, U., Kasper, N. V., Vigliante, A., Wochner, P., Dosch, H., Razavi, F. S., and Habermeier, H.-U. Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO{sub 3}(001) Substrates. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.096101.
Gebhardt, U., Kasper, N. V., Vigliante, A., Wochner, P., Dosch, H., Razavi, F. S., & Habermeier, H.-U. Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO{sub 3}(001) Substrates. United States. doi:10.1103/PHYSREVLETT.98.096101.
Gebhardt, U., Kasper, N. V., Vigliante, A., Wochner, P., Dosch, H., Razavi, F. S., and Habermeier, H.-U. Fri . "Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO{sub 3}(001) Substrates". United States. doi:10.1103/PHYSREVLETT.98.096101.
@article{osti_20957708,
title = {Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO{sub 3}(001) Substrates},
author = {Gebhardt, U. and Kasper, N. V. and Vigliante, A. and Wochner, P. and Dosch, H. and Razavi, F. S. and Habermeier, H.-U.},
abstractNote = {We present an extended synchrotron x-ray scattering study of the structure of thin manganite films grown on SrTiO{sub 3}(001) substrates and reveal a new kind of misfit strain relaxation process which exploits twinning to adjust lattice mismatch. We show that this relaxation mechanism emerges in thin films as one-dimensional twinning waves which freeze out into a twin domain pattern as the manganite film continues to grow. A quantitative microscopic model which uses a matrix formalism is able to reproduce all x-ray features and provides a detailed insight into this novel relaxation mechanism. We further demonstrate how this twin angle pattern affects the transport properties in these functional films.},
doi = {10.1103/PHYSREVLETT.98.096101},
journal = {Physical Review Letters},
number = 9,
volume = 98,
place = {United States},
year = {Fri Mar 02 00:00:00 EST 2007},
month = {Fri Mar 02 00:00:00 EST 2007}
}