{ "id": "cond-mat/0102417", "version": "v2", "published": "2001-02-22T23:36:49.000Z", "updated": "2001-02-23T00:15:57.000Z", "title": "Low-Temperature Properties of Quasi-One-Dimensional Molecule-Based Ferromagnets", "authors": [ "Takashi Nakanishi", "Shoji Yamamoto", "Toru Sakai" ], "comment": "10 pages, 7 figures embedded, to be published in J. Phys. Soc. Jpn. Vol.70, No.5 (2001)", "doi": "10.1143/JPSJ.70.1380", "categories": [ "cond-mat.stat-mech", "cond-mat.mtrl-sci" ], "abstract": "Quantum and thermal behaviors of low-dimensional mixed-spin systems are investigated with particular emphasis on the design of molecule-based ferromagnets. One can obtain a molecular ferromagnet by assembling molecular bricks so as to construct a low-dimensional system with a magnetic ground state and then coupling the chains or the layers again in a ferromagnetic fashion. Two of thus-constructed quasi-one-dimensional bimetallic compounds are qualitatively viewed within the spin-wave treatment, one of which successfully grows into a bulk magnet, while the other of which ends in a singlet ground state. Then, concentrating on the ferrimagnetic arrangement on a two-leg ladder which is well indicative of general coupled-chain ferrimagnets, we develop the spin-wave theory and fully reveal its low-energy structure. We inquire further into the ferromagnetic aspect of the ferrimagnetic ladder numerically calculating the sublattice magnetization and the magnetic susceptibility. There exists a moderate coupling strength between the chains in order to obtain the most ferromagnetic ferrimagnet.", "revisions": [ { "version": "v2", "updated": "2001-02-23T00:15:57.000Z" } ], "analyses": { "keywords": [ "quasi-one-dimensional molecule-based ferromagnets", "low-temperature properties", "magnetic ground state", "general coupled-chain ferrimagnets", "thus-constructed quasi-one-dimensional bimetallic compounds" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }