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Fe2+ Electronic Transitions in Raman and Infrared Spectra of FePSe3 and FePS3 Crystals

Published online by Cambridge University Press:  21 February 2011

M. Jouanne ,
M.L. Sanjuan ,
M.A. Kanehisa ,
M. Balkanski ,
P. Cavalli ,
G. Campagnoli ,
G. Samoggia  and
M. Scaglioqti
M. Jouanne
Affiliation:
Laboratoire de Physique des Solides, UA 154 Université P. et M. Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France
M.L. Sanjuan
Affiliation:
Laboratoire de Physique des Solides, UA 154 Université P. et M. Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France
M.A. Kanehisa
Affiliation:
Laboratoire de Physique des Solides, UA 154 Université P. et M. Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France
M. Balkanski
Affiliation:
Laboratoire de Physique des Solides, UA 154 Université P. et M. Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France
P. Cavalli
Affiliation:
Dip. di Fisica “A. Volta”, Università di Pavia, via Bassi 6, 27100 Pavia, Italy
G. Campagnoli
Affiliation:
Dip. di Fisica “A. Volta”, Università di Pavia, via Bassi 6, 27100 Pavia, Italy
G. Samoggia
Affiliation:
Dip. di Fisica “A. Volta”, Università di Pavia, via Bassi 6, 27100 Pavia, Italy
M. Scaglioqti
Affiliation:
Cise -Tecnologie Innovative SpA, via Reggio Emilia 39, 1-20090 Segrate (Milano), Italy
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Abstract

Polarized Raman scattering and infrared absorption measurements were carried out in FePS3 and FePSe3 as a function of temperature. Features at 700-2000 cm−1 are shown to be essentially due to transitions among the trigonal-field-split 5T2g multiplet of the Fe2+ iron and their phonon sidebands. Though the unpolarized Raman spectra are similar in both compounds, polarized spectra are markedly different. We propose a tentative model to account for this.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 135: Symposium M – Solid State Ionics I , 1988 , 443
Copyright
Copyright © Materials Research Society 1989

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References

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