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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >The structure of As_3Se_5Te_2 infrared optical glass
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The structure of As_3Se_5Te_2 infrared optical glass

机译：As_3Se_5Te_2红外光学玻璃的结构

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摘要

The structure of As_3Se_5Te_2 infrared optical glass was investigated by X-ray and neutron diffraction as well as extended X-ray absorption fine structure measurements at the As-, Se- and Te K-edges. The five datasets were modelled simultaneously by the reverse Monte Carlo simulation technique. Experimental data could be fitted satisfactorily by allowing As-Se, As-Te and Se-Te bonds only. It was revealed that the affinity of As is much higher to Se than to Te. The nearest As-Se distance is similar to that found in other vitreous As-Se based alloys, while the As-Te bond length is 0.02-0.04A shorter in As_3Se_5Te_2 than in binary As-Te glasses.
机译：通过X射线和中子衍射以及在As，Se和Te K边缘的扩展X射线吸收精细结构测量，研究了As_3Se_5Te_2红外光学玻璃的结构。通过反向蒙特卡洛模拟技术同时对五个数据集进行建模。仅允许使用As-Se，As-Te和Se-Te键，可以令人满意地拟合实验数据。发现As对Se的亲和力比Te高。最接近的As-Se距离与其他玻璃态As-Se基合金相似，而As_3Se_5Te_2中的As-Te键长比二元As-Te玻璃短0.02-0.04A。

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