Autor:	Kant, Ch., Deisenhofer, J., Tsurkan, V., Loidl, A.
Rok vydání:	2009
Předmět:	Condensed Matter - Strongly Correlated Electrons
Zdroj:	J. Phys.: Conf. Ser. 200, 032032 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1088/1742-6596/200/3/032032
Popis:	We analyzed the magnetic susceptibilities of several Cr spinels using two recent models for the geometrically frustrated pyrochlore lattice, the Quantum Tetrahedral Mean Field model and a Generalized Constant Coupling model. Both models can describe the experimental data for ACr2 O4 (with A = Zn, Mg, and Cd) satisfactorily, with the former yielding a somewhat better agreement with experiment for A = Zn, Mg. The obtained exchange constants for nearest and next-nearest neighbors are discussed. Comment: 4 pages, 1 figure, 1 table, conference
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0905.4903 Zobrazit plný text záznamu View this record from Arxiv