{ "id": "cond-mat/0412244", "version": "v1", "published": "2004-12-09T17:07:22.000Z", "updated": "2004-12-09T17:07:22.000Z", "title": "Modified Spin-Wave Theory for Nanomagnets : Application to the Keplerate Molecule Mo(72)Fe(30)", "authors": [ "Olivier Cepas", "Timothy Ziman" ], "comment": "12 pages, 11 figures", "journal": "Prog. Theor. Phys. Suppl. 159, 280 (2005)", "doi": "10.1143/PTPS.159.280", "categories": [ "cond-mat.mtrl-sci" ], "abstract": "We adapt Takahashi's modified spin-wave theory to the context of nano-magnets, and apply it to the molecular compound based on the giant magnetic molecule Mo(72)Fe(30). This involves solving numerically the mean-field equations and then forcing the sublattice magnetizations to zero by means of local chemical potentials for the magnons. We have thus constructed a quantum state with no local magnetization at all temperatures, appropriate to a finite-size system, but with strong correlations. We compare theoretical results to specific heat and ESR measurements.", "revisions": [ { "version": "v1", "updated": "2004-12-09T17:07:22.000Z" } ], "analyses": { "keywords": [ "keplerate molecule mo", "application", "giant magnetic molecule mo", "adapt takahashis modified spin-wave theory", "nanomagnets" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }