Honors Program Theses
Award/Availability
Open Access Honors Program Thesis
Keywords
Nanostructured materials--Magnetic properties; Order-disorder in alloys; Gadolinium; Melt spinning;
Abstract
As nanoscale science continues to flourish, scientists strive to understand how structure and order (or disorder) on the nanoscale contribute to macroscopic properties, such as magnetism. This study examines alloys of gadolinium and iron that have been nanostructured through the process of melt-spinning. The result was a two-part system consisting of small (~70 nm) gadolinium grains surrounded by an amorphous gadolinium and iron matrix. Measurements of the samples’ DC magnetization and AC susceptibility were performed. By looking at the paramagnetic to ferromagnetic transition in the materials, the critical exponents were obtained and used to classify and understand how the addition of iron and the melt-spinning process affected the magnetic properties. By using relatively simple magnetic atoms, we intend for this study to be a fundamental look at disorder on the nanoscale and a model system for future investigations.
Year of Submission
2008
University Honors Designation
A thesis submitted in partial fulfillment of the requirements for the designation University Honors
Date Original
2008
Object Description
47 p.
Copyright
© 2008 Justin Gary Bohnet
Language
EN
File Format
application/pdf
Recommended Citation
Bohnet, Justin Gary, "The effects of nanoscale disorder on the paramagnetic to ferromagnetic transition in melt-spun gadolinium and gadolinium iron alloys" (2008). Honors Program Theses. 11.
https://scholarworks.uni.edu/hpt/11
