title: Electronic and magnetic structure for the spin-gapped system CuTe(2)O(5).
abstract: The results of the calculation of the electronic and magnetic properties for the spin-gapped material CuTe(2)O(5) are presented. The direct computation of exchange constants J in the framework of the LDA+U shows that the largest exchange coupling in CuTe(2)O(5) is found between fourth nearest neighbors, as was argued by Das et al (2008 Phys. Rev. 77 224437), and that this compound should be considered as the two-dimensional coupled dimer system.
authors.affiliation: Ural State Technical University, Mira Street 19, Ekaterinburg, Russia. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, D-50937 Köln, Germany.
authors.forename: A V
authors.initials: AV
authors.lastname: Ushakov
authors.forename: S V
authors.initials: SV
authors.lastname: Streltsov