Unexpected Semimetallic BiS2 at High Pressure and High Temperature

The Journal of Physical Chemistry Letters
Guangtao LiuYanming Ma

Abstract

In the past decade, the group V-VI compounds have been widely investigated due to their excellent properties and applications. It is now accepted that diverse stoichiometry can yield new compounds with unanticipated properties, uncovering potentially new physicochemical mechanisms. However, in this group, aside from the conventional A2B3-type, no other energetically stable stoichiometry has been reported yet. Here, we report that Bi2S3 is unstable and decomposes into stoichiometric BiS2 and BiS with different Bi valence states upon compression. Encouragingly, we successfully synthesized the predicted BiS2 phase and thus, confirmed its existence. Our current calculations reveal that the found BiS2 phase is a semimetal, associated with the increased concentration of nonmetallic S. The present results represent the first counterintuitive stable stoichiometry of group V-VI and provide a good example in designing and synthesizing new compounds under compression.

References

Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Jan 26, 2008·Nature Materials·G Jeffrey Snyder, Eric S Toberer
Dec 22, 2010·Proceedings of the National Academy of Sciences of the United States of America·J L ZhangC Q Jin
Jan 15, 2011·Physical Review Letters·Jian LvYanming Ma
May 13, 2011·Physical Review Letters·Li ZhuGuangtian Zou
Oct 20, 2011·Inorganic Chemistry·Jinggeng ZhaoGenda Gu
Nov 1, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yanmei MaYanming Ma
Dec 21, 2013·Science·Weiwei ZhangZuzana Konôpková
Feb 12, 2014·The Journal of Physical Chemistry. a·Ilias EfthimiopoulosYuejian Wang
Jan 24, 2015·Physical Review Letters·Miao ZhangYanming Ma
Sep 19, 2015·Physical Review Letters·Yinwei LiJohn S Tse
Nov 3, 2015·Scientific Reports·Zhenhai YuHo-Kwang Mao

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Citations

Jan 19, 2019·Physical Chemistry Chemical Physics : PCCP·Jianyun WangYanming Ma
Feb 20, 2021·The Journal of Physical Chemistry Letters·Han LiuChangfeng Chen
Aug 14, 2020·The Journal of Physical Chemistry Letters·Kai JiangJunhao Chu

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