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Optical absorption spectroscopy in the metastable state SI of Na2[Fe(CN)5NO]·2H2O

Published online by Cambridge University Press:  21 March 2011

Dominik Schaniel ,
Jürg Schefer ,
Bernard Delley ,
Mirco Imlau  and
Theo Woike
Dominik Schaniel
Affiliation:
Laboratory for Neutron Scattering, ETH Zürich & PSI, 5232 Villigen PSI, Switzerland
Jürg Schefer
Affiliation:
Laboratory for Neutron Scattering, ETH Zürich & PSI, 5232 Villigen PSI, Switzerland
Bernard Delley
Affiliation:
Condensed Matter Theory, FUN Department, PSI, CH-5232 Villigen PSI, Switzerland
Mirco Imlau
Affiliation:
Fachbereich Physik, University of Osnabrück, D-49069 Osnabrück, Germany
Theo Woike
Affiliation:
Institute of Mineralogy and Geochemistry, University at Cologne, D-50674 Köln, Germany
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Abstract

The metastable state SI in single crystals of orthorhombic Na2[Fe(CN)5NO]2H2O (sodiumnitroprusside, SNP) was investigated by absorption spectroscopy. The development of the spectra with increasing population of SI was monitored and a new band in the red spectral range was assigned to SI. By comparing with density functional theory (DFT) calculations we were able to assign the band to the electronic transition 2b2→7e. In addition we found that very strong holographic light scattering influences the absorption spectra measured with light polarization along the a- or b-axis of the crystals.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 674: Symposia T/U/V – Applications of Ferromagnetic and Optical Materials, Storage and Magnetoelectronics , 2001 , V2.5
Copyright
Copyright © Materials Research Society 2001

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References

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