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Mössbauer spectroscopic studies of [Fe(H2O)6]3+ in amorphous frozen solutions at weak applied magnetic fields
Authors:JE Knudsen
Institution:Laboratory of Applied Physics II, Technical University of Denmark, DK-2800 Lyngby, Denmark
Abstract:The ferric hexaquo complex, Fe(H2O)6]3+, has been studied by Mössbauer spectroscopy of amorphous aqueous frozen solutions at weak applied magnetic fields. Spectra of well resolved paramagnetic hyperfine structure have been interpreted in terms of a spin Hamiltonian model for the crystal field interaction proposed in a previous work. Reasonable fits could be obtained only by the addition of a random magnetic field of a few Gauss which is attributed partly to the dipolar interaction with neighbouring iron ions, and partly to the ligand hyperfine interaction.
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