中国物理B ›› 2015, Vol. 24 ›› Issue (3): 36401-036401.doi: 10.1088/1674-1056/24/3/036401

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Structural phase transitions of tellurium nanoplates under pressure

李超a, Arfan Bukhtiarb, 沈希a, 孔盼盼a, 王伟鹏a, 赵豪飞a, 姚湲a, 邹炳锁b, 李延春c, 李晓东c, 刘景c, 靳常青a, 禹日成a   

  1. 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
  • 收稿日期:2014-10-05 修回日期:2014-12-10 出版日期:2015-03-05 发布日期:2015-03-05
  • 基金资助:

    Project supported by the State Key Development Program for Basic Research of China (Grant No. 2012CB932302) and the National Natural Science Foundation of China (Grant Nos. 10974235 and 11174336).

Structural phase transitions of tellurium nanoplates under pressure

Li Chao (李超)a, Arfan Bukhtiarb, Shen Xi (沈希)a, Kong Pan-Pan (孔盼盼)a, Wang Wei-Peng (王伟鹏)a, Zhao Hao-Fei (赵豪飞)a, Yao Yuan (姚湲)a, Zou Bing-Suo (邹炳锁)b, Li Yan-Chun (李延春)c, Li Xiao-Dong (李晓东)c, Liu Jing (刘景)c, Jin Chang-Qing (靳常青)a, Yu Ri-Cheng (禹日成)a   

  1. 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
  • Received:2014-10-05 Revised:2014-12-10 Online:2015-03-05 Published:2015-03-05
  • Contact: Yu Ri-Cheng E-mail:rcyu@aphy.iphy.ac.cn
  • Supported by:

    Project supported by the State Key Development Program for Basic Research of China (Grant No. 2012CB932302) and the National Natural Science Foundation of China (Grant Nos. 10974235 and 11174336).

摘要:

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.

关键词: tellurium nanoplates, phase transition, high pressure

Abstract:

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.

Key words: tellurium nanoplates, phase transition, high pressure

中图分类号:  (Structural transitions in nanoscale materials)

  • 64.70.Nd
61.05.cf (X-ray scattering (including small-angle scattering)) 64.60.-i (General studies of phase transitions)