Leandri, J., Leroyer, Y., Meshkov, S.V., Meurdesoif, Y., Kahn, O., Mombelli, B. and Price, D. (1996) Thermodynamics of a mixed quantum-classical Heisenberg model in two dimensions. Journal of Physics: Condensed Matter, 8(17), L271-L278. (doi: 10.1088/0953-8984/8/17/004)
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Abstract
We study the planar antiferromagnetic Heisenberg model on a decorated hexagonal lattice, involving both classical spins (occupying the vertices) and quantum spins (occupying the middle of the links). This study is motivated by the description of a recently synthesized molecular magnetic compound. First, we trace out the spin-1/2 degrees of freedom to obtain a fully classical model with an effective ferromagnetic interaction. Then, using high-temperature expansions and Monte Carlo simulations, we analyse its thermal and magnetic properties. We show that it provides a good quantitative description of the magnetic susceptibility of the molecular magnet in its paramagnetic phase.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Price, Dr Daniel |
| Authors: | Leandri, J., Leroyer, Y., Meshkov, S.V., Meurdesoif, Y., Kahn, O., Mombelli, B., and Price, D. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Journal of Physics: Condensed Matter |
| Journal Abbr.: | J. Phys.: Condens. Matter |
| Publisher: | IOP Publishing Ltd |
| ISSN: | 0953-8984 |
| ISSN (Online): | 1361-648X |
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