Location
University of Nevada Las Vegas, Science and Education Building
Start Date
9-8-2011 10:15 AM
End Date
9-8-2011 12:00 PM
Description
Using Raman spectroscopy, vibrational modes of the spinel structure MgxZn1-xCr2O4 were experimentally examined. The spinel compounds were synthesized by producing solid solutions via combustion method, of MgxZn1-xCr2O4 in the range x=0 to x=1 in 0.1 intervals. The purpose of which was to experimentally verify gradual shifts of Raman peaks as the samples transitioned between the two different compounds and gain information about the dependencies of the lattice vibrations on the tetrahedral and octahedral cations. X-ray diffraction was also used to verify spinel structure, and track the changes in lattice parameter of the samples.
Keywords
Crystal lattices; Raman spectroscopy; Spinel group
Disciplines
Atomic, Molecular and Optical Physics | Mineral Physics | Physics
Language
English
Investigation of Raman active modes of MgxZn1-xCr2O4
University of Nevada Las Vegas, Science and Education Building
Using Raman spectroscopy, vibrational modes of the spinel structure MgxZn1-xCr2O4 were experimentally examined. The spinel compounds were synthesized by producing solid solutions via combustion method, of MgxZn1-xCr2O4 in the range x=0 to x=1 in 0.1 intervals. The purpose of which was to experimentally verify gradual shifts of Raman peaks as the samples transitioned between the two different compounds and gain information about the dependencies of the lattice vibrations on the tetrahedral and octahedral cations. X-ray diffraction was also used to verify spinel structure, and track the changes in lattice parameter of the samples.
Comments
Advisers: John Farley and Brian Hosterman, University of Nevada, Las Vegas