Crystals of CdF₂:In and CdF₂:Ga reduced in a cadmium vapor exhibit unusual
metastable properties that can be explained by a "negative U" model. This work
uses NMR to investigate this model for CdF₂:Ga and CdF₂:Ga,Y and compare the
results to optical measurements. Temperature dependent relaxation measurements
were done on ¹¹³Cd...
This thesis presents the results from Monte Carlo calculations on classical vector spins in
face-centered-cubic (FCC) lattices. The goal of the study was to understand the effect of
interlayer coupling, dilution of magnetic atoms in the lattice, and symmetry-changing
strain.
Experimental work by T. M. Giebultowicz et al. and J....