Atomic displacement and disorder in LiNbO3 single crystal caused by high-energy He-3 ion irradiation: an x-ray absorption spectroscopy study

Vitova T; Zamani-Meymian MR; Peithmann K; Maier K; Hormes J

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Atomic displacement and disorder in LiNbO3 single crystal caused by high-energy He-3 ion irradiation: an x-ray absorption spectroscopy study

机译：高能He-3离子辐照导致LiNbO3单晶的原子位移和无序：x射线吸收光谱研究

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Nb K-edge x-ray absorption fine structure spectra from a single lithium niobate (LN) crystal irradiated with high-energy He-3 ions of 41 MeV and from unexposed crystal as the reference material are compared. The differences in the x-ray absorption near edge structure (XANES) spectra are interpreted by simulating Nb K-edge XANES spectra with the FEFF8.2 code. It is found that displacements of Nb and Li atoms, as well as Li and O vacancies, are likely to cause structural disorder leading to change in the refractive index of LN and to diminished birefringence. This finding is in agreement with previous results obtained from SRIM-2003 simulations and transmission electron microscopy measurements.

机译：比较了用41 MeV的高能He-3离子辐照的单个铌酸锂（LN）晶体和未辐照的晶体作为参考材料的Nb K边缘x射线吸收精细结构光谱。通过使用FEFF8.2代码模拟Nb K边缘XANES光谱来解释X射线吸收近边缘结构（XANES）光谱中的差异。发现Nb和Li原子的位移以及Li和O的空位很可能引起结构混乱，从而导致LN的折射率发生变化并降低了双折射。这一发现与从SRIM-2003模拟和透射电子显微镜测量获得的先前结果一致。

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《Journal of Physics. Condensed Matter》 |2009年第49期|共6页
作者
Vitova T; Zamani-Meymian MR; Peithmann K; Maier K; Hormes J;
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正文语种 eng
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LITHIUM-NIOBATE CRYSTALS; OPTICAL-WAVEGUIDES; WAVE-GUIDES; IMPLANTATION; DIFFRACTION; RADIATION; DAMAGE;

机译：铌酸锂晶体;光导;波导;植入;衍射;辐射;损伤;

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1. Atomic displacement and disorder in LiNbO3 single crystal caused by high-energy He-3 ion irradiation: an x-ray absorption spectroscopy study [J] . Vitova T, Zamani-Meymian MR, Peithmann K, Journal of Physics. Condensed Matter . 2009,第49期

机译：高能He-3离子辐照导致LiNbO3单晶的原子位移和无序：x射线吸收光谱研究
2. Structural Evolution of Ag-LEV Zeolite upon Heating: An In Situ Single-Crystal X-ray Diffraction (SC-XRD) and X-ray Absorption Spectroscopy (XAS) Study [J] . Georgia Cametti, Andreas C. Scheinost, Sergey V. Churakov ACS Omega . 2020,第49期

机译：Ag-lev沸石在加热时的结构演变：原位单晶X射线衍射（SC-XRD）和X射线吸收光谱（XAS）研究
3. Sequestration of Selenite and Selenate in Gypsum (CaSO_4·2H_2O): Insights from the Single-Crystal Electron Paramagnetic Resonance Spectroscopy and Synchrotron X-ray Absorption Spectroscopy Study [J] . Jinru Lin, Ning Chen, Renfei Feng, Environmental Science & Technology . 2020,第6期

机译：石膏中亚硒酸盐和硒酸盐的固存（CaSO_4·2H_2O）：单晶电子顺磁共振光谱和同步加速器X射线吸收光谱研究的启示
4. Defect structure changes in the single Si-crystals afterirradiation by high-energy electrons and long natural agingby high-resolution three-crystal X-ray diffractometry [C] . V.V. Dovganyuk, T.V. Lytvynchuk, V.V. Slobodyan, International Conference on Correlation Optics . 2008

机译：高能量电子和长期自然变老度的单晶体流动的缺陷结构变化，高分辨率三晶X射线衍射法
5. X-Ray Absorption Spectroscopy Studies of the Atomic Structure of Zirconium-Doped Lithium Silicate Glasses and Glass-Ceramics, Zirconium-Doped Lithium Borate Glasses, and Vitreous Rare-Earth Phosphates. [D] . Yoo, Changhyeon. 2016

机译：掺锆硅酸锂玻璃和玻璃陶瓷，掺锆硼酸锂玻璃和玻璃稀土磷酸盐的X射线吸收光谱研究。
6. Structural Evolution of Ag-LEV Zeolite upon Heating:An In Situ Single-Crystal X-ray Diffraction (SC-XRD) and X-rayAbsorption Spectroscopy (XAS) Study [O] . Georgia Cametti, *, Andreas C. Scheinost, 2020

机译：Ag-lev沸石在加热时的结构演变：一种原位单晶X射线衍射（SC-XRD）和X射线吸收光谱（XAS）研究
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机译：Fe（001）磁状态面向单晶MgO（001）隧道屏障的单晶层：X射线吸收光谱和X射线磁性圆形Dicliroism研究
8. Studies of Y-Ba-Cu-O single crystals by x-ray absorption spectroscopy [R] . Krol, A., Ming, Z. H., Kao, Y. H., 1992

机译：用X射线吸收光谱法研究Y-Ba-Cu-O单晶

Atomic displacement and disorder in LiNbO3 single crystal caused by high-energy He-3 ion irradiation: an x-ray absorption spectroscopy study

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