Structural phase transitions of tellurium nanoplates under pressure

In situ high-pressure angle dispersive x-ray diffraction experiments using synchrotron radiation on Te nanoplates were carried out with a diamond anvil cell at room temperature. The results show that Te-Ⅰ with a trigonal structure transforms to triclinic Te-Ⅱ at about 4.9 GPa, Te-Ⅱ transforms to mon...

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Published inChinese physics B Vol. 24; no. 3; pp. 280 - 283
Main Author 李超 Arfan Bukhtiar 沈希 孔盼盼 王伟鹏 赵豪飞 姚湲 邹炳锁 李延春 李晓东 刘景 靳常青 禹日成
Format Journal Article
LanguageEnglish
Published 01.03.2015
Subjects
Diamond anvil cells
Diffraction
Nanostructure
Phase transformations
Synchrotron radiation
Tellurium
Transforms
X-rays
X射线衍射
单斜晶系
压力
同步辐射
碲
纳米
结构相变
结构转变
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Summary:In situ high-pressure angle dispersive x-ray diffraction experiments using synchrotron radiation on Te nanoplates were carried out with a diamond anvil cell at room temperature. The results show that Te-Ⅰ with a trigonal structure transforms to triclinic Te-Ⅱ at about 4.9 GPa, Te-Ⅱ transforms to monoclinic Te-Ⅲ at about 8.0 GPa, Te-Ⅲ turns to rhombohedral Te-Ⅳ at about 23.8 GPa, and Te-Ⅳ changes to body centered cubic Te-Ⅴ at 27.6 GPa. The bulk moduli B0 of Te nanoplates are higher than those of Te bulk materials.
Bibliography:In situ high-pressure angle dispersive x-ray diffraction experiments using synchrotron radiation on Te nanoplates were carried out with a diamond anvil cell at room temperature. The results show that Te-Ⅰ with a trigonal structure transforms to triclinic Te-Ⅱ at about 4.9 GPa, Te-Ⅱ transforms to monoclinic Te-Ⅲ at about 8.0 GPa, Te-Ⅲ turns to rhombohedral Te-Ⅳ at about 23.8 GPa, and Te-Ⅳ changes to body centered cubic Te-Ⅴ at 27.6 GPa. The bulk moduli B0 of Te nanoplates are higher than those of Te bulk materials.
tellurium nanoplates,phase transition,high pressure
Li Chao, Arfan Bukhtiar, Shen Xi, Kong Pan-Pan, Wang Wei-Peng, Zhao Hao-Fei, Yao Yuan, Zou Bing-Suo, Li Yan-Chun, Li Xiao-Dong, Liu Jing, Jin Chang-Qing, and Yu Ri-Cheng（a） Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China ;b） Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing 100081, China ; c） Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/3/036401