skip to main content

DOE PAGESDOE PAGES

Title: Epitaxial growth of iridate pyrochlore Nd 2Ir 2O 7 films

Epitaxial films of the pyrochlore Nd 2Ir 2O 7 have been grown on (111)-oriented yttria-stabilized zirconia (YSZ) substrates by off-axis sputtering followed by post-growth annealing. X-ray diffraction (XRD) results demonstrate phase-pure epitaxial growth of the pyrochlore films on YSZ. Scanning transmission electron microscopy (STEM) investigation of an Nd 2Ir 2O 7 film with a short post-annealing provides insight into the mechanism for crystallization of Nd 2Ir 2O 7 during the post-annealing process. STEM images reveal clear pyrochlore ordering of Nd and Ir in the films. As a result, the epitaxial relationship between the YSZ and Nd 2Ir 2O 7 is observed clearly while some interfacial regions show a thin region with polycrystalline Ir nanocrystals.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. The Ohio State Univ., Columbus, OH (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
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:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; solid-phase synthesis; surfaces, interfaces and thin films
OSTI Identifier:
1255255

Gallagher, J. C., Esser, B. D., Morrow, R., Dunsiger, S. R., Williams, R. E. A., Woodward, P. M., McComb, D. W., and Yang, F. Y.. Epitaxial growth of iridate pyrochlore Nd2Ir2O7 films. United States: N. p., Web. doi:10.1038/srep22282.
Gallagher, J. C., Esser, B. D., Morrow, R., Dunsiger, S. R., Williams, R. E. A., Woodward, P. M., McComb, D. W., & Yang, F. Y.. Epitaxial growth of iridate pyrochlore Nd2Ir2O7 films. United States. doi:10.1038/srep22282.
Gallagher, J. C., Esser, B. D., Morrow, R., Dunsiger, S. R., Williams, R. E. A., Woodward, P. M., McComb, D. W., and Yang, F. Y.. 2016. "Epitaxial growth of iridate pyrochlore Nd2Ir2O7 films". United States. doi:10.1038/srep22282. https://www.osti.gov/servlets/purl/1255255.
@article{osti_1255255,
title = {Epitaxial growth of iridate pyrochlore Nd2Ir2O7 films},
author = {Gallagher, J. C. and Esser, B. D. and Morrow, R. and Dunsiger, S. R. and Williams, R. E. A. and Woodward, P. M. and McComb, D. W. and Yang, F. Y.},
abstractNote = {Epitaxial films of the pyrochlore Nd2Ir2O7 have been grown on (111)-oriented yttria-stabilized zirconia (YSZ) substrates by off-axis sputtering followed by post-growth annealing. X-ray diffraction (XRD) results demonstrate phase-pure epitaxial growth of the pyrochlore films on YSZ. Scanning transmission electron microscopy (STEM) investigation of an Nd2Ir2O7 film with a short post-annealing provides insight into the mechanism for crystallization of Nd2Ir2O7 during the post-annealing process. STEM images reveal clear pyrochlore ordering of Nd and Ir in the films. As a result, the epitaxial relationship between the YSZ and Nd2Ir2O7 is observed clearly while some interfacial regions show a thin region with polycrystalline Ir nanocrystals.},
doi = {10.1038/srep22282},
journal = {Scientific Reports},
number = ,
volume = 6,
place = {United States},
year = {2016},
month = {2}
}