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20 April 2024

» arxiv » cond-mat/0606421

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The mixed-valent manganese [3 x 3] grid [Mn(III)4Mn(II)5(2poap-2H)6](ClO4)10.10H2O, a mesoscopic spin-1/2 cluster
O. Waldmann ; H. U. Güdel ; T. L. Kelly ; L. K. Thompson ;
Date:	15 Jun 2006
Journal:	Inorg. Chem. 45, 3295 (2006)
Abstract:	The magnetic susceptibility, and low-temperature magnetization curve, of the [3 x 3] grid [Mn(III)4Mn(II)5(2poap-2H)6](ClO4)10.10H2O is analyzed within a spin Hamiltonian approach. The Hilbert space is huge (4,860,000 states), but the consequent use of all symmetries and a two-step fitting procedure nevertheless allows the best-fit determination of the magnetic exchange parameters in this system from complete quantum mechanical calculations. The cluster exhibits a total spin S = 1/2 ground state; the implications are discussed.
Source:	arXiv, cond-mat/0606421
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