Variation of Raman spectrum after optical excitation in amorphous As2Se3 at 1.6°K

作者: J. Cernogora , F. Mollot , C. Benoît àLa Guillaume , M. Jouanne

DOI: 10.1016/0038-1098(76)91192-3

关键词: Analytical chemistryChemistryElectronic statesHigh energyLight inducedAtomic configurationExcitationRaman spectroscopyAmorphous solidRaman scatteringMolecular physics

摘要: Abstract Several experiments, involving electronic states have shown that amorphous As 2 Se 3 is modified at low temperature by the action of not very strongly absorbed light (α∼10 cm −1 ). This paper presents Raman scattering results before and after illumination. The shape spectrum changed illumination: its high energy side has grown near 260 . induced modification vibrational discussed within framework a previous qualitative model changes in local atomic configuration.

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