Magnetic properties of a Heisenberg coupled-trimer molecular magnet: General results and application to spin- 1/2 vanadium clusters

Haraldsen, J T, Barnes, T, Sinclair, J W, Thompson, J R, Sacci, R L and Turner, J F C (2009) Magnetic properties of a Heisenberg coupled-trimer molecular magnet: General results and application to spin- 1/2 vanadium clusters. Physical Review B, 80 (6). ISSN 1094-1622

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Abstract

We report predictions for the energy eigenstates and inelastic neutron-scattering excitations of an isotropic Heisenberg hexamer consisting of general spin S and S' trimers. Specializing to spin-1/2 ions, we give analytic results for the energy excitations, magnetic susceptibility, and inelastic neutron-scattering intensities for this hexamer system. To examine this model further, we compare these calculations to the measured magnetic susceptibility of a vanadium material, which is considered to be well-defined magnetically as an isolated S=1/2 V4+ trimer model. Using our model, we determine the amount of intertrimer coupling that can be accommodated by the measured susceptibility and predict the inelastic neutron-scattering spectrum for comparison with future measurements.

Item Type: Article
Additional Information: This article has 7 pages. The publisher's source does not indicate Page Numbers.
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science
Depositing User: John Turner
Date Deposited: 06 Feb 2012 20:40
Last Modified: 02 Jul 2013 13:28
URI: http://sro.sussex.ac.uk/id/eprint/27370
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