High pressure induced charge transfer in 3d-4f bimetallic photomagnetic materials.
Pressure-induced crystal color change of photo-magnetic materials [Ln(DMF)4(H2O)3(μ-CN)M(CN)5]·H2O, Ln = Y, M = Fe (1), Ln = Y, M = Co (2), Ln = Nd, M = Fe (3) (DMF = N,N-dimethyl formamide) are investigated using variable pressure X-ray Absorption Near-Edge Structure (XANES) spectroscopy and X-ray diffraction. For 1 the effect is caused by ligand-to-metal charge transfer (LMCT) on the iron site.
Center for Materials Crystallography, Department of Chemistry and iNANO, University of Aarhus, 8000 Aarhus C, Denmark. bo@chem.au.dk.
Lai-Chin
LC
Wu
Morten Bormann
MB
Nielsen
Martin
M
Bremholm
Solveig Røgild
SR
Madsen
Jacob
J
Overgaard
Matt
M
Newville
Yu-Sheng
YS
Chen
Bo Brummerstedt
BB
Iversen