2009/05/29 by Ch. Kant, J. Deisenhofer, V. Tsurkan +1 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Multiferroics and related materials #Nuclear materials and radiation effects #cond-mat.str-el
paper · pdf · doi:10.1088/1742-6596/200/3/032032
published as J. Phys.: Conf. Ser. 200, 032032 (2010) · 4 pages, 1 figure, 1 table, conference
arxiv created 2009/05/29 · openalex publication_date 2010/01/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
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 ACr 2 O 4 (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.