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2005
Magnetic properties
Magnetic properties
D 9000
Synthesis, Crystal Structure, Magnetic Properties, and Electronic Structure of the
New Ternary Vanadate CuMnVO4. — The title compound is prepared by solid state
28- 010 reaction
of MnO, CuO, V2O5, and V2O3 (4:4:4:1, argon, 750 °C, 3 d). CuMnVO4 crystallizes in the orthorhombic space group Cmcm with Z = 4 (single crystal XRD). The
magnetic properties are characterized by magnetic susceptibility and specific heat measurements, and the spin exchange interactions are analyzed on the basis of spin-polarized electronic band structure calculations. CuMnVO4 contains chains of edge-sharing
MnO6 octahedra containing high-spin Mn2+ cations. The compound undergoes a
three-dimensional antiferromagnetic transition at -20 K. Both the intrachain and interchain spin exchanges are antiferromagnetic, and the interchain spin exchange is not
negligible compared to the intrachain spin exchange. — (BEN YAHIA, H.; GAUDIN,
E.; DARRIET*, J.; BANKS, M.; KREMER, R. K.; VILLESUZANNE, A.;
WHANGBO, M.-H.; Inorg. Chem. 44 (2005) 9, 3087-3093; Inst. Chim. Matiere
Condens. Bordeaux, CNRS, Univ. Bordeaux, F-33608 Pessac, Fr.; Eng.) —
Schramke
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