Journal
SCRIPTA MATERIALIA
Volume 187, Issue -, Pages 119-124Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2020.05.041
Keywords
Isotropic negative thermal expansion; Prussian blue analogue; Density functional theory; Crystal structure; Low frequency phonon
Categories
Funding
- National Natural Science Foundation of China [21905252, 21825102, 21731001]
- China Postdoctoral Science Foundation [2019M652558]
- Fundamental Research Funds for the Central Universities, China [FRF-TP-18-001C2]
- University of Padova through the Visiting Scientist program 2019
Ask authors/readers for more resources
We first found that ScCo(CN)(6) of Prussian blue analogues has a large isotropic negative thermal expansion which occurs in a wide temperature range from 25K to 600K. More intriguingly, the present material of ScCo(CN)(6) exhibits the merits of the facile fabrication via chemical coprecipitation and the good environment stability of water-free, which are very important for the applications. The transverse vibration of C and N atoms is critical for the occurrence of negative thermal expansion, which is confirmed by the atomic mean square relative displacements. The present new material of ScCo(CN)(6) will be promising for the applications. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available