Pressure induced polymerization of acetylide anions in CaC2 and 107 fold enhancement of electrical conductivity

Author:

Zheng Haiyan123,Wang Lijuan123,Li Kuo12345,Yang Youyou6783,Wang Yajie123,Wu Jiajia9103,Dong Xiao123,Wang Chun-Hai11121314,Tulk Christopher A.15161718,Molaison Jamie J.15161718,Ivanov Ilia N.19161718,Feygenson Mikhail15161718,Yang Wenge12345,Guthrie Malcolm452018,Zhao Yusheng21222324,Mao Ho-Kwang12345,Jin Changqing252627328

Affiliation:

1. Center for High Pressure Science and Technology Advanced Research (HPSTAR)

2. Beijing

3. China

4. Geophysical Laboratory

5. Carnegie Institution of Washington

6. COFCO Nutrition & Health Research Institute

7. Beijing Key Laboratory of Nutrition Health and Food Safety

8. Beijing 100209

9. Agilent Technologies (China) Co., Ltd.

10. Beijing 100102

11. Department of Chemistry

12. Durham University

13. Durham

14. UK

15. Spallation Neutron Source

16. Oak Ridge National Laboratory

17. Oak Ridge

18. USA

19. Centre for Nanophase Materials Sciences

20. Washington DC

21. Dept. of Physics

22. Southern University of Science and Technology

23. ShenZhen

24. China.

25. Institute of Physics

26. Chinese Academy of Sciences

27. Beijing 100190

28. Collaborative Innovation Centre of Quantum Matter

Abstract

Pressure induced polymerization of CaC2 in the amorphous phase is evidenced for the first time, accompanied by a 107 fold enhancement of the electrical conductivity.

Funder

U.S. Department of Energy

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

Subject

General Chemistry

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