Unexpected Semimetallic BiS2 at High Pressure and High Temperature.
View / Open Files
Authors
Yu, Zhenhai
Liu, Hanyu
Feng, Xiaolei
Li, Xin
Yuan, Ye
Yang, Ke
Hirao, Naohisa
Kawaguchi, Saori Imada
Ma, Yanming
Publication Date
2018-10-04Journal Title
J Phys Chem Lett
ISSN
1948-7185
Publisher
American Chemical Society (ACS)
Volume
9
Issue
19
Pages
5785-5791
Language
eng
Type
Article
This Version
AM
Physical Medium
Print-Electronic
Metadata
Show full item recordCitation
Liu, G., Yu, Z., Liu, H., Redfern, S. A., Feng, X., Li, X., Yuan, Y., et al. (2018). Unexpected Semimetallic BiS2 at High Pressure and High Temperature.. J Phys Chem Lett, 9 (19), 5785-5791. https://doi.org/10.1021/acs.jpclett.8b02004
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.
Identifiers
External DOI: https://doi.org/10.1021/acs.jpclett.8b02004
This record's URL: https://www.repository.cam.ac.uk/handle/1810/286527
Rights
Licence:
http://www.rioxx.net/licenses/all-rights-reserved
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.
Recommended or similar items
The current recommendation prototype on the Apollo Repository will be turned off on 03 February 2023. Although the pilot has been fruitful for both parties, the service provider IKVA is focusing on horizon scanning products and so the recommender service can no longer be supported. We recognise the importance of recommender services in supporting research discovery and are evaluating offerings from other service providers. If you would like to offer feedback on this decision please contact us on: support@repository.cam.ac.uk