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Title: Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO3(001) Substrates

Abstract

We present an extended synchrotron x-ray scattering study of the structure of thin manganite films grown on SrTiO3(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:
; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
959516
Report Number(s):
BNL-82502-2009-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1005750
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; FUNCTIONALS; RELAXATION; SCATTERING; STRAINS; STRONTIUM TITANATES; SUBSTRATES; SYNCHROTRONS; THICKNESS; THIN FILMS; TRANSPORT; TWINNING; X-RAY DIFFRACTION; national synchrotron light source

Citation Formats

Gebhardt,U., Kasper, N., Vigliante, A., Wochner, P., Dosch, H., Razavi, F., and Habermeier, H. Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO3(001) Substrates. United States: N. p., 2007. Web. doi:10.1103/PhysRevLett.98.096101.
Gebhardt,U., Kasper, N., Vigliante, A., Wochner, P., Dosch, H., Razavi, F., & Habermeier, H. Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO3(001) Substrates. United States. doi:10.1103/PhysRevLett.98.096101.
Gebhardt,U., Kasper, N., Vigliante, A., Wochner, P., Dosch, H., Razavi, F., and Habermeier, H. Mon . "Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO3(001) Substrates". United States. doi:10.1103/PhysRevLett.98.096101.
@article{osti_959516,
title = {Formation and Thickness Evolution of Periodic Twin Domains in Manganite Films Grown on SrTiO3(001) Substrates},
author = {Gebhardt,U. and Kasper, N. and Vigliante, A. and Wochner, P. and Dosch, H. and Razavi, F. and Habermeier, H.},
abstractNote = {We present an extended synchrotron x-ray scattering study of the structure of thin manganite films grown on SrTiO3(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 = ,
volume = 98,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}