Magnetic structure in manganites as probed by magnetic force microscopy

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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.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.description.departmentPhysicsen
dc.format.mediumelectronicen
dc.identifierb61100821en
dc.identifier.oclc70870390en
dc.identifier.urihttp://hdl.handle.net/2152/2240en
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.type.genreThesisen

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