Magnetic order in a metal thiocyanate perovskite-analogue

Abstract

Metal thiocyanate perovskite-analogues are a growing class of materials, but although they contain paramagnetic cations there have been no reports of their magnetic properties. Due to the large separations between the paramagnetic cations, with a shortest through-bond distance of 15.1 Å, these materials might be expected to be good examples of paramagnets. In this communication we investigate the magnetic properties of a metal thiocyanate framework Cr[Bi(SCN)6]·xH2O. We find that Cr[Bi(SCN)6]·xH2O undergoes long-range magnetic order at TN = 4.0(2) K. We use neutron powder diffraction to determine that Cr[Bi(SCN)6]·xH2O has a MnO-type {111}cubic-ordering as its ground state, consistent with frustrated nearest- and next-nearest-neighbour antiferromagnetic interactions. This suggests that appropriate design of metal thiocyanate perovskite-analogue structures may reveal a rich vein of frustrated magnetism.

Citation

Cliffe, M. J., Fabelo, O., & Cañadillas-Delgado, L. (2022). Magnetic order in a metal thiocyanate perovskite-analogue. CrystEngComm, https://doi.org/10.1039/d2ce00649a

• Journal Article Type: Article
• Acceptance Date: Jun 22, 2022
• Online Publication Date: Jun 23, 2022
• Publication Date: Jun 23, 2022
• Deposit Date: Jun 23, 2022
• Publicly Available Date: Jun 24, 2022
• Journal: CrystEngComm
• Electronic ISSN: 1466-8033
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1039/d2ce00649a
• Keywords: Condensed Matter Physics; General Materials Science; General Chemistry
• Public URL: https://nottingham-repository.worktribe.com/output/8633867
• Publisher URL: https://pubs.rsc.org/en/Content/ArticleLanding/2022/CE/D2CE00649A