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Title: Amorphization kinetics in strontium titanate at 16 and 300 K under argon ion irradiation

Abstract

Here, the accumulation of irradiation-induced disorder in SrTiO 3 single crystals irradiated at 16 K with 200 keV Ar ions has been investigated using Rutherford backscattering spectrometry along the < 100 > channeling direction and compared with previous results obtained at 300 K under identical irradiation conditions. As expected, amorphization at 16 K occurs at a much lower fluence than at 300 K due to dynamic recovery of irradiation-induced defects at 300 K. Utilizing a comprehensive damage accumulation model for analysis of the data, irradiation at 16 K results only in the formation of point defects and amorphous pockets, while defect clusters are also formed at 300 K. High defect mobility under irradiation at 300 K tends to promote recombination and clustering of point defects. These results suggest that defect diffusion processes in SrTiO 3 are not thermally active at 16 K.

Authors:
ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1491330
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Materials Science
Additional Journal Information:
Journal Volume: 54; Journal Issue: 8; Journal ID: ISSN 0022-2461
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Velişa, Gihan, Wendler, Elke, Wang, Liang-Ling, Zhang, Yanwen, and Weber, William J. Amorphization kinetics in strontium titanate at 16 and 300 K under argon ion irradiation. United States: N. p., 2019. Web. doi:10.1007/s10853-018-03313-7.
Velişa, Gihan, Wendler, Elke, Wang, Liang-Ling, Zhang, Yanwen, & Weber, William J. Amorphization kinetics in strontium titanate at 16 and 300 K under argon ion irradiation. United States. doi:10.1007/s10853-018-03313-7.
Velişa, Gihan, Wendler, Elke, Wang, Liang-Ling, Zhang, Yanwen, and Weber, William J. Wed . "Amorphization kinetics in strontium titanate at 16 and 300 K under argon ion irradiation". United States. doi:10.1007/s10853-018-03313-7.
@article{osti_1491330,
title = {Amorphization kinetics in strontium titanate at 16 and 300 K under argon ion irradiation},
author = {Velişa, Gihan and Wendler, Elke and Wang, Liang-Ling and Zhang, Yanwen and Weber, William J.},
abstractNote = {Here, the accumulation of irradiation-induced disorder in SrTiO3 single crystals irradiated at 16 K with 200 keV Ar ions has been investigated using Rutherford backscattering spectrometry along the < 100 > channeling direction and compared with previous results obtained at 300 K under identical irradiation conditions. As expected, amorphization at 16 K occurs at a much lower fluence than at 300 K due to dynamic recovery of irradiation-induced defects at 300 K. Utilizing a comprehensive damage accumulation model for analysis of the data, irradiation at 16 K results only in the formation of point defects and amorphous pockets, while defect clusters are also formed at 300 K. High defect mobility under irradiation at 300 K tends to promote recombination and clustering of point defects. These results suggest that defect diffusion processes in SrTiO3 are not thermally active at 16 K.},
doi = {10.1007/s10853-018-03313-7},
journal = {Journal of Materials Science},
number = 8,
volume = 54,
place = {United States},
year = {2019},
month = {1}
}

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Works referenced in this record:

Highly conductive nanolayers on strontium titanate produced by preferential ion-beam etching
journal, July 2005

  • Reagor, David W.; Butko, Vladimir Y.
  • Nature Materials, Vol. 4, Issue 8, p. 593-596
  • DOI: 10.1038/nmat1402

Epitaxial SrTiO3 films with electron mobilities exceeding 30,000 cm2 V-1 s-1
journal, April 2010

  • Son, Junwoo; Moetakef, Pouya; Jalan, Bharat
  • Nature Materials, Vol. 9, Issue 6, p. 482-484
  • DOI: 10.1038/nmat2750