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Phenomenological modeling of molecular based rings beyond the strong exchange limit : bond alternation and single ion anisotropy effectsCARAMICO D'AURIA, ALVARO and ESPOSITO, FILIPPO (2008) Phenomenological modeling of molecular based rings beyond the strong exchange limit : bond alternation and single ion anisotropy effects. [Pubblicazione su rivista scientifica] Full text non disponibile da questo archivio. URL: www.elsevier.com/locate/ica AbstractNon perturbative approaches, namely numerically exact diagonalization and quantum transfer matrix technique, are applied to Heisenberg spin systems to model antiferromagnetic ring shaped molecules. The Hamiltonian assumed includes the single ion anisotrop
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