Raman Scattering Study of Interactions of Cyanide Impurities in Potassium-Chloride Under Variation of Temperature and Concentration (near-Neighbor Pairing, Davydov Splitting, Motional Narrowing)

The interactions of CN('-) impurities in KCl have been investigated by Raman light scattering in the spectral region of the CN('-) stretching frequency. The low temperature width and observed motional narrowing of the primary peak assigned to isolated cyanide impurities is attributed to interaction with non-near-neighbor defects in the lattice. A splitting has been observed in a spectral feature attributed to CN('-) pairs and attributed to a dynamical interaction (Davydov splitting). This suggests a model for nearest-neighbor pairing. The relative positions and intensities of downshifted sidebands are explained by this model.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Grant, Marion Billingsley

• Physics, Condensed Matter

Language dc:language

eng

Identifier

(UMI)AAI8521773

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/77379