Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore

Y. Zhang, W. J. Weber, V. Shutthanandan, R. Devanathan, S. Thevuthasan, G. Balakrishnan, D. M. Paul

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Single crystals of Sm 2Ti 2O 7 were irradiated with 1.0 MeV Au + at 170, 300, and 700K to study the accumulation of atomic disorder on both the Sm and O sublattices using in situ RBS and NRA along the substrate. The nonlinear damage evolution is consistent with disorder accumulation model, which indicates a role of amorphization process. It was found that at low ion fluences, the disorder on the O sublattice is higher than that for Sm, which suggests differences in threshold displacement energies, defect configurations or defect stability. The increase in exchange between O in the near critical temperature for amorphization suggested a correlation between oxygen vacancy mobility and the critical temperature.

Original languageEnglish
Pages (from-to)2866-2872
Number of pages7
JournalJournal of Applied Physics
Volume95
Issue number5
DOIs
Publication statusPublished - 1 Mar 2004
Externally publishedYes

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samarium
sublattices
disorders
damage
critical temperature
defects
fluence
thresholds
single crystals
oxygen
configurations
ions
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Zhang, Y., Weber, W. J., Shutthanandan, V., Devanathan, R., Thevuthasan, S., Balakrishnan, G., & Paul, D. M. (2004). Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore. Journal of Applied Physics, 95(5), 2866-2872. https://doi.org/10.1063/1.1644891

Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore. / Zhang, Y.; Weber, W. J.; Shutthanandan, V.; Devanathan, R.; Thevuthasan, S.; Balakrishnan, G.; Paul, D. M.

In: Journal of Applied Physics, Vol. 95, No. 5, 01.03.2004, p. 2866-2872.

Research output: Contribution to journalArticle

Zhang, Y, Weber, WJ, Shutthanandan, V, Devanathan, R, Thevuthasan, S, Balakrishnan, G & Paul, DM 2004, 'Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore', Journal of Applied Physics, vol. 95, no. 5, pp. 2866-2872. https://doi.org/10.1063/1.1644891
Zhang Y, Weber WJ, Shutthanandan V, Devanathan R, Thevuthasan S, Balakrishnan G et al. Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore. Journal of Applied Physics. 2004 Mar 1;95(5):2866-2872. https://doi.org/10.1063/1.1644891
Zhang, Y. ; Weber, W. J. ; Shutthanandan, V. ; Devanathan, R. ; Thevuthasan, S. ; Balakrishnan, G. ; Paul, D. M. / Damage evolution on Sm and O sublattices in Au-implanted samarium titanate pyrochlore. In: Journal of Applied Physics. 2004 ; Vol. 95, No. 5. pp. 2866-2872.
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