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Title: Structural sensitivity of x-ray Bragg projection ptychography to domain patterns in epitaxial thin films

Bragg projection ptychography (BPP) is a coherent diffraction imaging technique capable of mapping the spatial distribution of the Bragg structure factor in nanostructured thin films. Here, we show that, because these images are projections, the structural sensitivity of the resulting images depends on the film thickness and the aspect ratio and orientation of the features of interest and that image interpretation depends on these factors. Lastly, we model changes in contrast in the BPP reconstructions of simulated PbTiO 3 ferroelectric thin films with meandering 180° stripe domains as a function of film thickness, discuss their origin, and comment on the implication of these factors on the design of BPP experiments of general nanostructured films.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [3] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Univ. of Wisconsin, Madison, WI (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357; FG02-04ER46147
Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 94; Journal Issue: 4; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1340002
Alternate Identifier(s):
OSTI ID: 1328513

Hruszkewycz, S. O., Zhang, Q., Holt, M. V., Highland, M. J., Evans, P. G., and Fuoss, P. H.. Structural sensitivity of x-ray Bragg projection ptychography to domain patterns in epitaxial thin films. United States: N. p., Web. doi:10.1103/PhysRevA.94.043803.
Hruszkewycz, S. O., Zhang, Q., Holt, M. V., Highland, M. J., Evans, P. G., & Fuoss, P. H.. Structural sensitivity of x-ray Bragg projection ptychography to domain patterns in epitaxial thin films. United States. doi:10.1103/PhysRevA.94.043803.
Hruszkewycz, S. O., Zhang, Q., Holt, M. V., Highland, M. J., Evans, P. G., and Fuoss, P. H.. 2016. "Structural sensitivity of x-ray Bragg projection ptychography to domain patterns in epitaxial thin films". United States. doi:10.1103/PhysRevA.94.043803. https://www.osti.gov/servlets/purl/1340002.
@article{osti_1340002,
title = {Structural sensitivity of x-ray Bragg projection ptychography to domain patterns in epitaxial thin films},
author = {Hruszkewycz, S. O. and Zhang, Q. and Holt, M. V. and Highland, M. J. and Evans, P. G. and Fuoss, P. H.},
abstractNote = {Bragg projection ptychography (BPP) is a coherent diffraction imaging technique capable of mapping the spatial distribution of the Bragg structure factor in nanostructured thin films. Here, we show that, because these images are projections, the structural sensitivity of the resulting images depends on the film thickness and the aspect ratio and orientation of the features of interest and that image interpretation depends on these factors. Lastly, we model changes in contrast in the BPP reconstructions of simulated PbTiO3 ferroelectric thin films with meandering 180° stripe domains as a function of film thickness, discuss their origin, and comment on the implication of these factors on the design of BPP experiments of general nanostructured films.},
doi = {10.1103/PhysRevA.94.043803},
journal = {Physical Review A},
number = 4,
volume = 94,
place = {United States},
year = {2016},
month = {10}
}

Works referenced in this record:

Imaging Local Polarization in Ferroelectric Thin Films by Coherent X-Ray Bragg Projection Ptychography
journal, April 2013
  • Hruszkewycz, S. O.; Highland, M. J.; Holt, M. V.
  • Physical Review Letters, Vol. 110, Issue 17, Article No. 177601
  • DOI: 10.1103/PhysRevLett.110.177601

Stabilization of Monodomain Polarization in Ultrathin PbTiO 3 Films
journal, March 2006