Abstract
dc:description.abstractA magneto-optical study of CoxFe1-xFe2O4 nanoparticles is presented, with cobalt molar ratio 0.x.1. The ferrite nanoparticles were produced using a generic wet-chemical synthesis procedure. Stoichiometric amounts of Fe2+, Fe3+ and Co2+ salts are dissolved in a non-aqueous polar medium (diethylene glycol). A coprecipitation reaction with sodium hydroxide produces ferrite nanoparticles with average diameter of 6 nm. The nanoparticles can be stabilized by tetramethyl ammonium hydroxide in water, or, alternatively, the nanoparticles can be treated with a hydrophobic capping ligand with a carboxylic acid or amine head group and suspended in a non-polar organic solvent. As a complete structural analysis of this series of samples is quite difficult due to the similarities of the constituents, magneto-optical spectroscopy is performed to decode the structural orientations of each cation involved. Faraday rotation was measured on nanoparticle samples dried on an amorphous silica substrate from 400-1000 nm.
Degree
thesis:*- Name thesis:degree_name
- M.S.
- Level thesis:degree_level
- Thesis
- Discipline thesis:degree_discipline
- Physics
- Year
- 2007
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Scott, Byron L.
- Contributors dc:contributor
-
- Stokes, Kevin
- Malkinski, Leszek
- Wiley, John
Identifiers
dc:identifier.*- Repository record dc:identifier
- https://scholarworks.uno.edu/td/623
- OAI identifier oai:identifier
- oai:scholarworks.uno.edu:td-1623