Magnetic order in a metal thiocyanate perovskite-analogue


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)6xH2O. We find that Cr[Bi(SCN)6xH2O undergoes long-range magnetic order at TN = 4.0(2) K. We use neutron powder diffraction to determine that Cr[Bi(SCN)6xH2O 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.

Graphical abstract: Magnetic order in a metal thiocyanate perovskite-analogue

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Article type
12 May 2022
22 Jun 2022
First published
23 Jun 2022
This article is Open Access
Creative Commons BY license

CrystEngComm, 2022, Advance Article

Magnetic order in a metal thiocyanate perovskite-analogue

M. J. Cliffe, O. Fabelo and L. Cañadillas-Delgado, CrystEngComm, 2022, Advance Article , DOI: 10.1039/D2CE00649A

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