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dc.contributor.authorJacob, Sarkis Y.en_US
dc.date.accessioned2009-05-21T13:54:23Z
dc.date.available2009-05-21T13:54:23Z
dc.date.issued1999-05-21T13:54:23Z
dc.identifier.urihttp://hdl.handle.net/10464/1347
dc.description.abstractInterest in mixed-valent perovskite manganese oxides of La\-xAxMnO^ (v4-divalent alkaline earth Ca, Sr or Ba), whose unusual properties were discovered nearly a half century ago, has recently been revived. The discovery of the colossal magnetoresistance and pressure effects introduced new questions concerning the complex interplay between lattice structure, magnetism and transport in doped perovskite manganites. In this study, we report our experimental investigations of pressure and magnetic field dependencies of La-i/sCai/sMnOs (LCMO) epitaxial films with various thickness on SrTiO$ substrate. An analysis of film thickness dependency of the resistivity of LCMO epitaxial films under pressure and magnetic field has been performed by taking into account substrate contributions. This verifies the correlation of lattice distortion with magnetic and transport properties. Strong dependencies of Mn — O — Mn bond bending and Mn — O bond stretching with pressure as well as Mn spin alignment with magnetic field, and the lattice distortion induced by the substrate are discussed.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectPerovskite.en_US
dc.subjectLanthanum compounds.en_US
dc.subjectManganese.en_US
dc.subjectMagnetoresistance.en_US
dc.subjectThin filmsen_US
dc.titleSystematic studies of the effect of pressure on magnetic and electronic properties of La2/3Ca1/3MnO3 thin films with various thicknesses /en_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Physicsen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Physicsen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US
refterms.dateFOA2021-08-07T01:57:34Z


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