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Characterization of Magnetic Nanostructures Using Off-Axis Electron Holography


Abstract This dissertation research has involved microscopic characterization of magnetic nanostructures using off-axis electron holography and Lorentz microscopy. The nanostructures investigated have included Co nanoparticles (NPs), Au/Fe/GaAs shell/core nanowires (NWs), carbon spirals with magnetic cores, magnetic nanopillars, Ni-Zn-Co spinel ferrite and CoFe/Pd multilayers. The studies have confirmed the capability of holography to describe the behavior of magnetic structures at the nanoscale.

The phase changes caused by the fringing fields of chains consisting of Co NPs were measured and calculated. The difference between chains with different numbers of Co NPs followed the trend indicated by calculations. Holography studies of Au/Fe/GaAs NWs g... (more)
Created Date 2015
Contributor Zhang, Desai (Author) / McCartney, Martha R (Advisor) / Smith, David J (Advisor) / Crozier, Peter A (Committee member) / Petusky, William T (Committee member) / Chamberlin, Ralph V (Committee member) / Arizona State University (Publisher)
Subject Materials Science / Physics / Engineering / Electron Holography / Magnetism / Nanostructure / TEM
Type Doctoral Dissertation
Extent 146 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Engineering 2015
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis