Two regimes of ionization-induced recovery in SrTiO3 under irradiation
Abstract
Irradiation of pre-damaged SrTiO3 with 2 MeV He, 1.2 MeV C, 5 MeV C and 12 MeV O ions reveals two regimes of ionization-induced recovery. For C and O ions, with electronic energy loss between 1.6 and 3 keV/nm, recovery cross-sections range from 0.27 to 0.38 nm2, and molecular dynamics confirms recovery related to ionization-induced thermal spikes via electron-phonon coupling. Lastly, at lower electronic energy losses, recovery cross-sections decrease to about 5.5 × 10-4 nm2 for 2 MeV He ions and 1.0 × 10-5 nm2 for 200 keV electrons, which suggests recovery associated with local electronic excitation processes.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- 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)
- OSTI Identifier:
- 1559652
- Alternate Identifier(s):
- OSTI ID: 1557924
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 173; Journal Issue: N/A; Journal ID: ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Weber, William, Xue, Haizhou, Zarkadoula, Eva, and Zhang, Yanwen. Two regimes of ionization-induced recovery in SrTiO3 under irradiation. United States: N. p., 2019.
Web. doi:10.1016/j.scriptamat.2019.08.013.
Weber, William, Xue, Haizhou, Zarkadoula, Eva, & Zhang, Yanwen. Two regimes of ionization-induced recovery in SrTiO3 under irradiation. United States. https://doi.org/10.1016/j.scriptamat.2019.08.013
Weber, William, Xue, Haizhou, Zarkadoula, Eva, and Zhang, Yanwen. Sun .
"Two regimes of ionization-induced recovery in SrTiO3 under irradiation". United States. https://doi.org/10.1016/j.scriptamat.2019.08.013. https://www.osti.gov/servlets/purl/1559652.
@article{osti_1559652,
title = {Two regimes of ionization-induced recovery in SrTiO3 under irradiation},
author = {Weber, William and Xue, Haizhou and Zarkadoula, Eva and Zhang, Yanwen},
abstractNote = {Irradiation of pre-damaged SrTiO3 with 2 MeV He, 1.2 MeV C, 5 MeV C and 12 MeV O ions reveals two regimes of ionization-induced recovery. For C and O ions, with electronic energy loss between 1.6 and 3 keV/nm, recovery cross-sections range from 0.27 to 0.38 nm2, and molecular dynamics confirms recovery related to ionization-induced thermal spikes via electron-phonon coupling. Lastly, at lower electronic energy losses, recovery cross-sections decrease to about 5.5 × 10-4 nm2 for 2 MeV He ions and 1.0 × 10-5 nm2 for 200 keV electrons, which suggests recovery associated with local electronic excitation processes.},
doi = {10.1016/j.scriptamat.2019.08.013},
journal = {Scripta Materialia},
number = N/A,
volume = 173,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 2019},
month = {Sun Dec 01 00:00:00 EST 2019}
}
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