Symmetry lowering of LiNbO_3/LiTaO_3 superlattice thin films studied by SHG

Kobata T.; Tsukahara G.; Uesu Y.

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Symmetry lowering of LiNbO_3/LiTaO_3 superlattice thin films studied by SHG

机译：SHG研究LiNbO_3 / LiTaO_3超晶格薄膜的对称性降低

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LiNbO_3(LN)/LiTaO_3(LT) superlattice thin films (SL) with several LT/(LN + LT) ratios and LN mono-layered films with several thicknesses are fabricated by the pulsed laser deposition (PLD) method. Structural analyses by XRD reveals that these films have a structure similar to those of LN and LT bulk crystals. The reduction of the point group symmetry from rhombohedral 3 m to monoclinic m is observed by SHG microscopy (SHGM). We compare LN/LT superlattice thin film and LN mono-layered thin films to observe how differently their point group symmetries deteriorate.

机译：通过脉冲激光沉积（PLD）方法制造具有几种LT /（LN + LT）比的LiNbO_3（LN）/ LiTaO_3（LT）超晶格薄膜（SL）和具有几种厚度的LN单层膜。 XRD的结构分析表明，这些膜的结构类似于LN和LT块状晶体。通过SHG显微镜（SHGM）观察到点基对称性从菱形3 m减小到单斜面m。我们比较了LN / LT超晶格薄膜和LN单层薄膜，以观察它们的点组对称性如何恶化。

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《Phase Transitions》 |2011年第10期|共8页
作者
Kobata T.; Tsukahara G.; Uesu Y.;
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正文语种 eng
中图分类物理学;
关键词
LiNbO_3; LiTaO_3; SHG; superlattice;

机译：Lin BO_3;l IT AO_3;sh G;super lattice;

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1. Symmetry lowering of LiNbO_3/LiTaO_3 superlattice thin films studied by SHG [J] . Kobata T., Tsukahara G., Uesu Y. Phase Transitions . 2011,第9a10期

机译：SHG研究LiNbO_3 / LiTaO_3超晶格薄膜的对称性降低
2. Toward High-Quality Epitaxial LiNbO_3 and LiTaO_3 Thin Films for Acoustic and Optical Applications [J] . Ausrine Bartasyte, Samuel Margueron, Thomas Baron, Advanced materials interfaces . 2017,第8期

机译：朝高品质的外延LINBO_3和LIAO_3用于声学和光学应用的薄膜
3. Residual stresses and clamped thermal expansion in LiNbO_3 and LiTaO_3 thin films [J] . A. Bartasyte, V. Plausinaitiene, A. Abrutis, Applied Physics Letters . 2012,第12期

机译：LiNbO_3和LiTaO_3薄膜中的残余应力和固定的热膨胀
4. Autostoichiometric mocvd of multicomponent thin films LiTaO_3, LiNbO_3 and Sr_xBa_1-xNbO_6 [C] . R.Zhang, R.Xu, Materials Research Society Symposium on thin films for optical waveguide devices and materials for optical limiting . 2000

机译：多组分薄膜的自动镜片MOCVD LIAO_3，LINBO_3和SR_XBA_1-XNBO_6
5. Elastic and Dielectric Properties of LiTaO_3 and LiNbO_3 Crystals [D] . Tomeno, Izumi 1987

机译：LiTaO_3和LiNbO_3晶体的弹性和介电性能
6. Colloidal Self-Assembly of Inorganic Nanocrystals into Superlattice Thin-Films and Multiscale Nanostructures [O] . Hongseok Yun, Taejong Paik 2019

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7. Relative SHG measurements of metal thin films: Gold, silver, aluminum, cobalt, chromium, germanium, nickel, antimony, titanium, titanium nitride, tungsten, zinc, silicon and indium tin oxide [O] . 2017

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Symmetry lowering of LiNbO_3/LiTaO_3 superlattice thin films studied by SHG

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