Magnetic structure and properties of the honeycomb antiferromagnet [Na(OH2)3]Mn(NCS)3

Madeleine Geers; Thomas B. Gill; Andrew D. Burnett; Euan N. Bassey; Oscar Fabelo; Laura Cañadillas-Delgado; Matthew J. Cliffe

doi:10.1039/D4CP01265H

Magnetic structure and properties of the honeycomb antiferromagnet [Na(OH₂)₃]Mn(NCS)₃†

Madeleine Geers,

^ab Thomas B. Gill,

^c Andrew D. Burnett,

^d Euan N. Bassey,

‡^e Oscar Fabelo,

^b Laura Cañadillas-Delgado

^b and Matthew J. Cliffe

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry, University Park, Nottingham, UK
E-mail: matthew.cliffe@nottingham.ac.uk

^b Institut Laue Langevin, 71 avenue des Martyrs CS 20156, 38042 Grenoble Cedex 9, France

^c School of Electronic and Electrical Engineering, University of Leeds, Leeds, UK

^d School of Chemistry, University of Leeds, Leeds, UK

^e Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK

Abstract

We report the magnetic structure and properties of a thiocyanate-based honeycomb magnet [Na(OH₂)₃]Mn(NCS)₃ which crystallises in the unusual low-symmetry trigonal space group P [3 with combining macron] . Magnetic measurements on powder samples show this material is an antiferromagnet (ordering temperature T_N,mag = 18.1(6) K) and can be described by nearest neighbour antiferromagnetic interactions J = −11.07(4) K. A method for growing neutron-diffraction sized single crystals (>10 mm³) is demonstrated. Low temperature neutron single crystal diffraction shows that the compound adopts the collinear antiferromagnetic structure with T_N,neut = 18.94(7) K, magnetic space group P [3 with combining macron] ′. Low temperature second-harmonic generation (SHG) measurements provide no evidence of breaking of the centre of symmetry.

This article is part of the themed collection: PCCP 2023 Emerging Investigators

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Article information

DOI: https://doi.org/10.1039/D4CP01265H
Article type: Communication
Submitted: 26 mars 2024
Accepted: 13 mai 2024
First published: 14 mai 2024
This article is Open Access

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Phys. Chem. Chem. Phys., 2024,26, 15844-15849

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Magnetic structure and properties of the honeycomb antiferromagnet [Na(OH₂)₃]Mn(NCS)₃

M. Geers, T. B. Gill, A. D. Burnett, E. N. Bassey, O. Fabelo, L. Cañadillas-Delgado and M. J. Cliffe, Phys. Chem. Chem. Phys., 2024, 26, 15844 DOI: 10.1039/D4CP01265H

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