Towards lattice-gas description of low-temperature properties above the Haldane and cluster-based Haldane ground states of a mixed spin-(1,1/2) Heisenberg octahedral chain.
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DOI: 10.1103/physreve.106.014107
Abstract: The rich ground-state phase diagram of the mixed spin-(1,1/2) Heisenberg octahedral chain was previously elaborated from effective mixed-spin Heisenberg chains, which were derived by employing a local conservation of a total spin on square plaquettes… read more here.
Keywords: mixed spin; octahedral chain; spin heisenberg; ground ... See more keywords