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dc.contributor.advisorMansuripur, Masuden_US
dc.contributor.authorHajjar, Roger Antoine
dc.creatorHajjar, Roger Antoineen_US
dc.date.accessioned2011-10-31T17:49:46Zen
dc.date.available2011-10-31T17:49:46Zen
dc.date.issued1992en_US
dc.identifier.urihttp://hdl.handle.net/10150/185831en
dc.description.abstractThis dissertation discusses the optical, magnetic and transport properties of magneto-optical recording media. The various custom-made and off-the-shelf instrumentation used in this study include: a Vibrating Sample Magnetometer (VSM), a modified polarization microscope, a polar Kerr effect loop tracer, a variable angle of incidence ellipsometer, and magnetoresistance/Hall effect/resistivity probes. Most of the samples studied were analyzed for determination of their composition and thickness by Rutherford Back Scattering (RPS) and X-Ray Fluorescence (XRF). The samples investigated were manufactured in several industrial and academic laboratories under different deposition conditions. The optical properties measured include Kerr rotation angle and ellipticity, Fresnel reflectivity coefficients, and calculation of the dielectric tensor. The magnetic properties include measurements of saturation magnetization, coercivity, anisotropy field, calculations of exchange energy parameters, domain wall, and anisotropy energy densities from experimental observations. The transport properties include measurements of magnetoresistance and Hall effect with three different geometries and calculation of the resistivity tensor. The modeling work consisted of modeling the optical path for various instruments, the current distribution in magnetic films, and the calculation of the demagnetizing energy using the fast Fourier transform technique.
dc.language.isoenen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectDissertations, Academic.en_US
dc.subjectOptics.en_US
dc.subjectElectrical engineering.en_US
dc.titleCharacterization of magneto-optical recording mediaen_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.identifier.oclc712655698en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.leveldoctoralen_US
dc.contributor.committeememberBurke, James J.en_US
dc.contributor.committeememberEngel, Brad N.en_US
dc.identifier.proquest9225191en_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.namePh.D.en_US
refterms.dateFOA2018-06-04T13:37:06Z
html.description.abstractThis dissertation discusses the optical, magnetic and transport properties of magneto-optical recording media. The various custom-made and off-the-shelf instrumentation used in this study include: a Vibrating Sample Magnetometer (VSM), a modified polarization microscope, a polar Kerr effect loop tracer, a variable angle of incidence ellipsometer, and magnetoresistance/Hall effect/resistivity probes. Most of the samples studied were analyzed for determination of their composition and thickness by Rutherford Back Scattering (RPS) and X-Ray Fluorescence (XRF). The samples investigated were manufactured in several industrial and academic laboratories under different deposition conditions. The optical properties measured include Kerr rotation angle and ellipticity, Fresnel reflectivity coefficients, and calculation of the dielectric tensor. The magnetic properties include measurements of saturation magnetization, coercivity, anisotropy field, calculations of exchange energy parameters, domain wall, and anisotropy energy densities from experimental observations. The transport properties include measurements of magnetoresistance and Hall effect with three different geometries and calculation of the resistivity tensor. The modeling work consisted of modeling the optical path for various instruments, the current distribution in magnetic films, and the calculation of the demagnetizing energy using the fast Fourier transform technique.


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