High-precision absolute lattice parameter determination of SrTiO3, DyScO3 and NdGaO3 single crystals.

IF 1.9 3区化学

Acta Crystallographica Section B-structural Science Pub Date : 2012-02-01 Epub Date: 2012-01-06 DOI:10.1107/S0108768111046738

Martin Schmidbauer, Albert Kwasniewski, Jutta Schwarzkopf

引用次数: 80

Abstract

The lattice parameters of three perovskite-related oxides have been measured with high precision at room temperature. An accuracy of the order of 10(-5) has been achieved by applying a sophisticated high-resolution X-ray diffraction technique which is based on the modified Bond method. The results on cubic SrTiO(3) [a = 3.905268 (98) Å], orthorhombic DyScO(3) [a = 5.442417 (54), b = 5.719357 (52) and c = 7.904326 (98) Å], and orthorhombic NdGaO(3) [a = 5.428410 (54), b = 5.498407 (55) and c = 7.708878 (95) Å] are discussed in view of possible systematic errors as well as non-stoichiometry in the crystals.

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SrTiO3、DyScO3和NdGaO3单晶绝对晶格参数的高精度测定。

本文在室温下高精度地测量了三种钙钛矿相关氧化物的晶格参数。通过应用基于改进Bond方法的复杂的高分辨率x射线衍射技术，获得了10(-5)级的精度。考虑到晶体中可能存在的系统误差和非化学计量性，讨论了立方SrTiO(3) [a = 3.905268 (98) Å]、正交DyScO(3) [a = 5.442417 (54)， b = 5.719357 (52)， c = 7.904326 (98) Å]、正交NdGaO(3) [a = 5.428410 (54)， b = 5.498407 (55)， c = 7.708878 (95) Å]的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Crystallographica Section B-structural Science 化学-晶体学

自引率

5.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials publishes scientific articles related to the structural science of compounds and materials in the widest sense. Knowledge of the arrangements of atoms, including their temporal variations and dependencies on temperature and pressure, is often the key to understanding physical and chemical phenomena and is crucial for the design of new materials and supramolecular devices. Acta Crystallographica B is the forum for the publication of such contributions. Scientific developments based on experimental studies as well as those based on theoretical approaches, including crystal-structure prediction, structure-property relations and the use of databases of crystal structures, are published.