Computer simulations invoking the Metropolis Algorithm and Monte Carlo
techniques were constructed to model the behavior ofvarious systems of magnetic
semiconductors. Among the systems modeled were bulk type II FCC
antiferromagnets and simple cubic thin films and superlattices. Studies of bulk
antiferromagnets revealed dependence of Neel Temperature on nearest neighbor
interactions as well as next nearest neighbor contributions in contradiction to mean
field theory. Thin film studies revealed the effects of film thickness on critical
temperature as well as differing magnetization curves for different portions of the
fIlm. Superlattice simulations showed agreement with experimental data regarding
anisotropy studies and also investigated the correlation beween interlayer and
intralayer ordering in a superlattice. These simulations predict that interlayer
coupling begins either at a temperature equal to that of the onset of intralayer
ordering or at some higher temperature. / Graduation date: 2004
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/30104 |
| Date | 03 October 2003 |
| Creators | Scott, Silas Menlo |
| Contributors | Giebultowiez, Tomasz M. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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