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dc.contributor.advisorLozanne, Alex deen
dc.creatorIsrael, Emil Caseyen
dc.date.accessioned2008-08-28T22:39:17Zen
dc.date.available2008-08-28T22:39:17Zen
dc.date.issued2005en
dc.identifierb61100821en
dc.identifier.urihttp://hdl.handle.net/2152/2240en
dc.descriptiontexten
dc.description.abstractThis dissertation describes the use of magnetic force microscopy to directly measure the magnetic structure of a sample on a microscopic level. Our magnetic force microscope has been operated at temperatures ranging from 293 to 4.3 K and fields ranging from 0 to 3 T, providing a method for imaging temperature and field–dependent magnetic phase transitions and domain structures on a local scale. On the instrumentation side, I present details of the design, construction, and operation of a magnetic force microscope with coarse three dimensional tip/sample positioning. On the sample side, I focus primarily on the results of our studies concerning magnetic phase transitions in the manganite La1−x−yPryCaxMnO3, which for some dopings is a colossal magnetoresistive material. I will briefly discuss two ongoing projects: the use of our magnetic force microscope to image field–dependent domain structure in patterned magnetic manganite films and its use as an electrostatic force microscope.
dc.format.mediumelectronicen
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subject.lcshMagnetic resonance imagingen
dc.subject.lcshManganiteen
dc.titleMagnetic structure in manganites as probed by magnetic force microscopyen
dc.description.departmentPhysicsen
dc.identifier.oclc70870390en
dc.type.genreThesisen
thesis.degree.departmentPhysicsen
thesis.degree.disciplinePhysicsen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen


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