title: Computationally inexpensive interpretation of magnetic data for finite spin clusters.
abstract: We show that high-temperature expansion of the partition function is a computationally convenient tool to interpretation of magnetic properties of spin clusters wherein the spin centers are interacting via an isotropic Heisenberg exchange operator. High-temperature expansions up to order 12 are used to reproduce temperature dependent magnetic susceptibilities of a Cr(III) tetramer, a decanuclear Fe(III) wheel, a 3x3 grid arrangement of nine Mn(II) ions, and a dodecanuclear Ni(II) wheel. Excellent agreement with experiments as well as with results from computationally more elaborate methods is achieved.
authors.affiliation: Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark.
authors.forename: Christian Aagaard
authors.initials: CA
authors.lastname: Thuesen
authors.forename: Høgni
authors.initials: H
authors.lastname: Weihe
authors.forename: Jesper
authors.initials: J
authors.lastname: Bendix
authors.forename: Stergios
authors.initials: S
authors.lastname: Piligkos
authors.forename: Ole
authors.initials: O
authors.lastname: Mønsted