Zhang, F. X. ; Velisa, G. ; Xue, H. ; Sellami, N. ; Trautmann, C. ; Zhang, Y. ; Weber, W. J. (2021)
Ion irradiation induced strain and structural changes in LiTaO3 perovskite*.
In: Journal of Physics: Condensed Matter, (18)
doi: 10.1088/1361-648X/abee3a
Article, Bibliographie
Abstract
LiTaO3 crystals irradiated with 3 MeV and 1.162 GeV Au ions were studied by single crystal x-ray diffraction and Raman scattering measurements. The maximum lattice strains after 3 MeV Au ion irradiation to a fluence of 1.2 × 1013 cm−2 were 1.2% and 0.6% along the c- and a-/b-axes, respectively. Two effects were observed in 1.162 GeV Au ion irradiated samples: (i) the (0006) and (1120) Bragg peaks were split into doublets, which suggested a subtle structural change due to slight modification of chemical composition; and (ii) the pre-damaged 1.2% lattice strain along the c-axis was relaxed to 0.9% after subsequent irradiation with 1.162 GeV Au ions, while relaxation along the a- or b-axis was not obvious. A distinct change in the Raman spectrum of the 〈0001〉 oriented LiTaO3 crystals was observed after 1.162 GeV Au ion irradiation, but no obvious change was observed in the 〈1120〉 oriented samples or in 3 MeV Au ion irradiated samples. Strain and structural changes in crystalline LiTaO3, with or without pre-existing defects, upon ion irradiation are delineated in its responding to inelastic ionization and elastic nuclear collisions.
| Item Type: | Article |
|---|---|
| Erschienen: | 2021 |
| Creators: | Zhang, F. X. ; Velisa, G. ; Xue, H. ; Sellami, N. ; Trautmann, C. ; Zhang, Y. ; Weber, W. J. |
| Type of entry: | Bibliographie |
| Title: | Ion irradiation induced strain and structural changes in LiTaO3 perovskite* |
| Language: | English |
| Date: | 23 April 2021 |
| Publisher: | IOP Publishing |
| Journal or Publication Title: | Journal of Physics: Condensed Matter |
| Issue Number: | 18 |
| Series Volume: | 33 |
| DOI: | 10.1088/1361-648X/abee3a |
| Abstract: | LiTaO3 crystals irradiated with 3 MeV and 1.162 GeV Au ions were studied by single crystal x-ray diffraction and Raman scattering measurements. The maximum lattice strains after 3 MeV Au ion irradiation to a fluence of 1.2 × 1013 cm−2 were 1.2% and 0.6% along the c- and a-/b-axes, respectively. Two effects were observed in 1.162 GeV Au ion irradiated samples: (i) the (0006) and (1120) Bragg peaks were split into doublets, which suggested a subtle structural change due to slight modification of chemical composition; and (ii) the pre-damaged 1.2% lattice strain along the c-axis was relaxed to 0.9% after subsequent irradiation with 1.162 GeV Au ions, while relaxation along the a- or b-axis was not obvious. A distinct change in the Raman spectrum of the 〈0001〉 oriented LiTaO3 crystals was observed after 1.162 GeV Au ion irradiation, but no obvious change was observed in the 〈1120〉 oriented samples or in 3 MeV Au ion irradiated samples. Strain and structural changes in crystalline LiTaO3, with or without pre-existing defects, upon ion irradiation are delineated in its responding to inelastic ionization and elastic nuclear collisions. |
| Additional Information: | Artikel-ID: 185402 |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials |
| Date Deposited: | 29 Feb 2024 07:52 |
| Last Modified: | 29 Feb 2024 07:52 |
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