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Synergistic effects of nuclear and electronic energy deposition on damage production in KTaO3.
- Source :
- Materials Research Letters; Sep2018, Vol. 6 Issue 9, p531-536, 6p
- Publication Year :
- 2018
-
Abstract
- Ion irradiation of KTaO<subscript>3</subscript> has been performed to investigate the evolution of irradiation damage with and without significant electronic energy deposition. Damage accumulation under irradiation with 2MeV Au ions follows a direct-impact/defect-stimulated model, and occurs more rapidly than in SrTiO<subscript>3</subscript> under similar conditions. Electronic energy deposition from 21 MeV Ni ions creates negligible damage in pristine KTaO<subscript>3</subscript> to depths of 1 micron; however, damage is greatly enhanced in samples containing pre-existing defects, as evidenced by rapid amorphization due to track formation. The cross-sections for amorphous tracks show a nearly linear dependence on initial disorder, comparable with SrTiO<subscript>3</subscript>. IMPACT STATEMENT Structural modification in KTaO<subscript>3</subscript> is sensitive to both electronic and nuclear energy deposition that can be controlled to exploit promising electronic and optical functionalities. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21663831
- Volume :
- 6
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Materials Research Letters
- Publication Type :
- Academic Journal
- Accession number :
- 130621837
- Full Text :
- https://doi.org/10.1080/21663831.2018.1495131