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Full-Text Articles in Physical Sciences and Mathematics
A Study Of Nife(X)Cr(2-X)O4 By Laser Micro-Raman Spectroscopy, Lucas Wilson, Markus Vasquez, John Farley, Allen L. Johnson, Brian D. Hosterman
A Study Of Nife(X)Cr(2-X)O4 By Laser Micro-Raman Spectroscopy, Lucas Wilson, Markus Vasquez, John Farley, Allen L. Johnson, Brian D. Hosterman
Undergraduate Research Opportunities Program (UROP)
Standards of spinels, composed of two metals and oxygen with the formula AB2O4, are being created with known composition to identify spinels in samples of unknown composition by comparison with the spectra obtained from the standards. Laser micro-Raman spectroscopy allows the identification of chemical species based on their unique vibrational modes. The degree to which spinels of varying composition can be identified will be determined. This will aid in the study of the corrosion of steel by liquid metal. Spinels are a likely component of the oxide layer. Understanding the composition of the products of corrosion leads to an understanding …
Magnetic Ordering Phase Transitions Of Gd2sn2o7, Gordon Tam, Andrew Cornelius, Daniel Antonio
Magnetic Ordering Phase Transitions Of Gd2sn2o7, Gordon Tam, Andrew Cornelius, Daniel Antonio
Undergraduate Research Opportunities Program (UROP)
Pyrochlores with magnetic rare earth ions are a topic of interest due to unusual results brought about by their high degree of geometrical frustration. The lattice structure prevents the magnetic spin interactions from finding a single minimum energy state, which leads to a nonzero residual entropy[1]. By analyzing the heat capacity at low temperatures, the type of magnetic interaction can be determined and the temperatures at which long-range magnetic ordering and magnetic field induced splitting of energy states occur.