Direct observation of charge transfer in double-perovskite-like RbMn[Fe(CN)6].
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.
Kato
K
K
JASRI/SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198, Japan.
Moritomo
Y
Y
Takata
M
M
Sakata
M
M
Umekawa
M
M
Hamada
N
N
Ohkoshi
S
S
Tokoro
H
H
Hashimoto
K
K