title: Direct observation of charge transfer in double-perovskite-like RbMn[Fe(CN)6].
abstract: The charge density distribution has been determined for a transition metal cyanide, RbMn[Fe(CN)(6)], by means of the maximum entropy-Rietveld method combined with the highly angularly resolved synchrotron radiation x-ray powder diffraction at SPring-8 BL02B2. We directly observed a charge transfer from the Mn site to the Fe site in the low-temperature phase. On the basis of a local density approximation calculation, we discuss the origin for the anisotropic bonding electron distribution around the Mn3+ ion in the low-temperature phase.
authors.affiliation: JASRI/SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kato
authors.forename: Y
authors.initials: Y
authors.lastname: Moritomo
authors.forename: M
authors.initials: M
authors.lastname: Takata
authors.forename: M
authors.initials: M
authors.lastname: Sakata
authors.forename: M
authors.initials: M
authors.lastname: Umekawa
authors.forename: N
authors.initials: N
authors.lastname: Hamada
authors.forename: S
authors.initials: S
authors.lastname: Ohkoshi
authors.forename: H
authors.initials: H
authors.lastname: Tokoro
authors.forename: K
authors.initials: K
authors.lastname: Hashimoto