| Issue |
EPJ Web of Conferences
Volume 75, 2014
JEMS 2013 – Joint European Magnetic Symposia
|
|
|---|---|---|
| Article Number | 05007 | |
| Number of page(s) | 4 | |
| Section | 5. Magnetic nanostructures, surfaces, interfaces, molecular nanomagnets | |
| DOI | https://doi.org/10.1051/epjconf/20147505007 | |
| Published online | 03 July 2014 | |
https://doi.org/10.1051/epjconf/20147505007
Non-uniform coupling model of the frustrated chromium-based ring Cr8Ni
Department of Physics, A. Mickiewicz University, Poznań, Poland
a e-mail: antekm@amu.edu.pl
Published online: 3 July 2014
A numerically exact spin-Hamiltonian approach has been proposed for the frustrated Cr8Ni molecule. The non-uniform exchange couplings parameters, improving the fit of the experimental magnetic susceptibility data, have been obtained, using a genetic algorithm search procedure. The energy intervals between the lowest multiplets, relevant for envisaged transitions observable in the INS spectra, have been determined and the critical fields corresponding to the first-level crossing have been estimated in agreement with experiment.
© Owned by the authors, published by EDP Sciences, 2014
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