Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"high-density magnetic"”.
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Brillouin scattering investigation of nanomagnetic structures
… dynamical properties of arrays of vertical ferromagnetic nanowires and nanorings, which show great promise as high-density magnetic storage and sensor devices. Three closely related projects are reported: (1) observation of bulk magnon quantization in Ni nanowires: bulk spin wave quantization has …
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Ab initio study of magnetic anisotropy of M-type hexaferrite thin films
… compound, show particular promise as very high density magnetic and magneto-optical datastorage media. There are still serious gaps in the understanding ofthe fundamental origins of, and mechanisms governing, the magneticproperties of these materials. The detailed relationships between …
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Fabrication and characterization of nanostructures from self-assembled block copolymers
Nanoscale magnetic dot arrays have attracted considerable interest, both for fundamental studies of micromagnetism and for possible applications in high-density magnetic data storage. Self-assembled block copolymers provide an alternative nanolithography technique to fabricate large-area nanomagnet …
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Design of High-density Transformers for High-frequency High-power Converters
… blossom of IC industries, so increasing the data density is clearly the ultimate goal of all technological development. If the power density of power electronics converters can be analogized to the data density of IC's, then power density is a critical indicator and inherent driving force to the …
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Quantitative High-angle Annular Dark Field Scanning Transmission To Electron Microscopy For Materials Science
… and to analyze crystal and defect structures. High-angle annular dark field (HAADF) STEM imaging using atomic number (Z) contrast has proven capable of resolving atomic structures with better than 2 A lateral resolution. In this work, the HAADF STEM imaging mode is used in combination with …
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Pattern formation and magnetism in pulsed laser-induced self-organized nanostructures from single and bilayer metallic films
… these resulting structures are related to their magnetic, optical, plasmonic, and magneto-optical properties, such as in high density magnetic storage, energy harvesting, and sensing. In this dissertation experimental and theoretical mechanisms of nanoscale patterning by dewetting …
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Synthesis and characterization of magnetically hard Fe-Pt alloy nanoparticles and nano-islands
… physical vapor deposition. Microstructure and magnetic properties characterizations were used to gain a fundamental understanding of the nano-structure formation and atomic ordering behavior and determine the possible applications in the next generation ultra-high density magnetic storage …
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Constant-Flux Inductor with Enclosed-Winding Geometry for Improved Energy Density
… have been searching for ways to improve the magnetic energy density and reduce the package size of magnetic parts. The "constant-flux" concept discussed herein is leveraged to achieve high magnetic-energy density by distributing the magnetic flux uniformly, leading to inductor geometries with …