Sampson, Gavin, Bristowe, Nicholas C., Carr, Sam T., Saib, Asad, Stenning, Gavin B. G., Clark, Ewan R. ORCID: https://orcid.org/0000-0001-7287-2631 and Saines, Paul J. ORCID: https://orcid.org/0000-0002-4207-2112 (2022) Quantum spin‐1/2 dimers in a low‐dimensional Tetrabromocuprate magnet. Chemistry – A European Journal, 28 (32):e202200855. ISSN 0947-6539 (Print), 1521-3765 (Online) (doi:10.1002/chem.202200855)

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Abstract

This work describes a homometallic spin‐ tetrabromocuprate adopting a bilayer structure. Magnetic‐susceptibility measurements show a broad maximum centred near 70 K, with fits to this data using a Heisenberg model consistent with strong antiferromagnetic coupling between neighbouring copper atoms in different layers of the bilayer. There are further weak intralayer ferromagnetic interactions between copper cations in neighbouring dimers. First‐principles calculations are consistent with this, but suggest there is only significant magnetic coupling within one direction of a layer; this would suggest the presence of a spin ladder within the bilayer with antiferromagnetic rung and weaker ferromagnetic rail couplings.

Item Type:	Article
Uncontrolled Keywords:	uprates, density functional calculations, halides, magnetic properties, X-ray diffraction
Subjects:	Q Science > Q Science (General) T Technology > T Technology (General)
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Science (SCI)
Last Modified:	02 Apr 2026 14:54
URI:	https://gala.gre.ac.uk/id/eprint/52712

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