Direct Observation of Vacancies and Local Thermal Vibration in Thermoelectric Rhenium Silicide
Direct Observation of Vacancies and Local Thermal Vibration in Thermoelectric Rhenium Silicide
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DOI：
10.1143/apex.5.035203
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发表时间：
2012-03-01
影响因子：
2.3
通讯作者：
Inui, Haruyuki
中科院分区：
文献类型：
--
作者：
Harada, Shunta;Tanaka, Katsushi;Inui, Haruyuki
利用球面像差（C-s）校正扫描透射电子显微镜（STEM）研究了空位异常有序排列的硅化铼晶体结构。利用c -s校正的STEM成像，我们首次直接观察到热电硅化铼中有序的硅空位伴随着相邻位置硅原子的异常大的局部热振动（“咔嗒”运动）。(C) 2012，日本应用物理学会
The crystal structure of rhenium silicide with an anomalous ordered arrangement of vacancies has been investigated by utilizing spherical-aberration (C-s)-corrected scanning transmission electron microscopy (STEM). Using C-s-corrected STEM imaging, we directly observe for the first time ordered silicon vacancies in thermoelectric rhenium silicide accompanied by anomalously large local thermal vibration ("rattling" motion) of silicon atoms in their adjacent sites. (C) 2012 The Japan Society of Applied Physics