Index Catalog // ScholarsArchive@OSU

Determination of magnetoelastic parameters in magnetic thin films from FMR spectra

Creator:: Masood, Khalid I.
Abstract:: The ferromagnetic resonance (FMR) phenomenon serves as a sensitive probe of the effective internal fields in a magnetic material. FMR spectroscopy has consequently become a well-established technique, extensively employed in assessing material properties such as magnetic anisotropy, Landé g-factor, damping parameter, and the magnetoelastic constants of magnetic materials. Determining these...
Resource Type:: Dissertation

Robotic Actuation and Control with Programmable, Field-Activated Material Systems

Creator:: Bira, Nicholas P.
Abstract:: This dissertation presents novel, field-activated smart material systems for the actuation and control of autonomous robots. Smart materials, a type of material whose properties can be changed with an external stimuli, represent a promising direction to expand upon existing robotic control and actuation methods, particularly in the sub-fields of soft...
Resource Type:: Dissertation

Field-Free Precessional Magnetization Switching by Focused Surface Acoustic Waves

Creator:: Lin, Han-Ting
Abstract:: In this research, the possibility of the precessional magnetization switching by focused surface acoustic waves, without external magnetic field, has been demonstrated. The technique of generating an effective magnetic field by applying stress to a magnetostrictive material via a surface acoustic wave is applied to perform field-free magnetization switching. It...
Resource Type:: Masters Thesis

Design and Implementation of an Alternating Current Susceptometer for Measuring Brownian Relaxation Time of Magnetic Nanoparticles Suspended in a Liquid Medium

Creator:: Paul, Partha Sarathi
Abstract:: In this work, an alternating current (ac) magnetic susceptometer is designed and implemented to track the Brownian relaxation time of magnetic nanoparticles that are suspended in a liquid medium. The detection technique based on the Brownian relaxation time of magnetic nanoparticles has found its way in a variety of biosensing...
Resource Type:: Capstone Project

Effectual Entrepreneurship and its Application to a Microfluidics R&D Startup

Creator:: Brown, Matthew E.
Abstract:: An inventor seeks to leverage his unique means in order to create and commercially exploit new technologies. Until new technologies are sufficiently developed, they have the theoretical potential for commercial exploitation in a wide range of markets. Those opportunities are limited by physical bounds that are often only discovered through...
Resource Type:: Masters Thesis

Soft Magnetic Composites for High Frequency Applications

Creator:: Song, Han
Abstract:: Soft magnetic composites, consisting of fine metallic particles in a non-magnetic, insulating matrix, have great potential for integrated inductor and antenna applications. The dielectric and magnetic properties of soft magnetic composites can be tailored by the choice of matrix as well as particle composition, size, and concentration for reduction in...
Resource Type:: Dissertation

Inhibition of the ammonia oxidizing bacteria Nitrosomonas europaea by the emerging contaminant triclosan

Creator:: Hughes, Jamie L.
Abstract:: Identifying the inhibition of ammonia oxidizing bacteria (AOB) by emerging organic contaminants is crucial due to the importance of AOB in wastewater treatment, the widespread use of antibacterial agents such as triclosan (TCS) in consumer products, and the sensitivity of N. europaea to inhibitors. Triclosan inhibition of nitrification by AOB...
Resource Type:: Masters Thesis

1/f noise of GaAs resistors on semi-insulating substrates, and 1/f noise due to temperature fluctuations in heat conduction

Creator:: Choi, Mun-Seork
Abstract:: This research work focuses on the mechanism of 1/f noise in GaAs resistors on semi-insulating substrates and 1/f noise due to temperature fluctuations in heat conduction in resistors, diodes, and bipolar transistors. The goal of this research is to generate accurate models to explain physical origin of 1/f noise in...
Resource Type:: Dissertation

On-chip crosstalk suppression schemes using magnetic films for RF/microwave applications

Creator:: Sligar, Arien
Abstract:: The primary objective of the thesis research is to study novel schemes of on-chip crosstalk suppression employing magnetic films at microwave frequencies. Since extraction of various material properties of the magnetic films is essential for successful application of the proposed method, the research also involves development of a new material...
Resource Type:: Masters Thesis

Discrete trap modeling of thin-film transistors

Creator:: Yerubandi, Ganesh Chakravarthy
Abstract:: A discrete trap model is developed and employed for elucidation of thin-film transistor (TFT) device physics trends. An attractive feature of this model is that only two model parameters are required, the trap energy depth, E[subscript T], and the trap density, N[subscript T]. The most relevant trends occur when E[subscript...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Determination of magnetoelastic parameters in magnetic thin films from FMR spectra

Robotic Actuation and Control with Programmable, Field-Activated Material Systems

Field-Free Precessional Magnetization Switching by Focused Surface Acoustic Waves

Design and Implementation of an Alternating Current Susceptometer for Measuring Brownian Relaxation Time of Magnetic Nanoparticles Suspended in a Liquid Medium

Effectual Entrepreneurship and its Application to a Microfluidics R&D Startup

Soft Magnetic Composites for High Frequency Applications

Inhibition of the ammonia oxidizing bacteria Nitrosomonas europaea by the emerging contaminant triclosan

1/f noise of GaAs resistors on semi-insulating substrates, and 1/f noise due to temperature fluctuations in heat conduction

On-chip crosstalk suppression schemes using magnetic films for RF/microwave applications

Discrete trap modeling of thin-film transistors

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