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Full-Text Articles in Nanoscience and Nanotechnology
Pulse Sharpening Effects Of Thin Film Ferroelectric Transmission Lines, Robert J. Sleezer
Pulse Sharpening Effects Of Thin Film Ferroelectric Transmission Lines, Robert J. Sleezer
Graduate Theses and Dissertations
Advances in material science have resulted in the development of electrically nonlinear high dielectric thin film ferroelectrics, which have led to new opportunities for the creation of novel devices. This dissertation investigated one such device: a low voltage nonlinear transmission line (NLTL). A finite element simulation of ferroelectric transmission lines showed that NLTLs are capable of creating shockwaves. Additionally, if the losses are kept sufficiently low, it was shown that voltage gain should be possible. Furthermore, a method of accounting for material dispersion was developed. Results from simulations including material dispersion showed that temporal solitons might be possible from a …
Nanowire Giant Magnetoresistance Thin Films For Magnetic Sensors, Bryan Cox
Nanowire Giant Magnetoresistance Thin Films For Magnetic Sensors, Bryan Cox
Doctoral Dissertations
This dissertation details a novel method to fabricate magnetic sensors using nanowire giant magnetoresistance (GMR) thin films. In 1988, Albert Fert and Peter Grünberg both independently discovered a new physical phenomenon called GMR. GMR is a quantum mechanical effect found in thin film materials that are composed of alternating nanoscale ferromagnetic and non-magnetic conductive layers. When a GMR material is in the presence of a magnetic field, a change in electrical resistance is observed. The GMR effect has been utilized to produce magnetic sensors that have been used in a variety of applications, such as computer hard drive read heads, …