Muon spin relaxation in a random ferromagnet: PdMn

dc.contributor.advisorDodds, Stanley A.en_US
dc.contributor.committeeMemberHannon, James P.en_US
dc.contributor.committeeMemberCorcoran, Marjorie D.en_US
dc.creatorGist, Grant Alanen_US
dc.date.accessioned2018-12-18T21:17:57Zen_US
dc.date.available2018-12-18T21:17:57Zen_US
dc.date.issued1983en_US
dc.description.abstractMuon spin relaxation (ySR) experiments have been performed in transverse, longitudinal and zero applied field on the disordered ferromagnet PdMn (2.3 at.%). Muon relaxation rates in the paramagnetic phase are in good agreement with predictions of the Walstedt-Walker formula, and appear to have no contribution from muon coupling to the giant moment polarization cloud. The transverse field relaxation rate (yT) and the width of x the zero field quasistatic field distribution (a(T)) in the ferromagnetic phase are less than calculated from a uniform mean field model. This "shortfall" is found to be qualitatively consistent with the Sherrington-Kirkpatrick disordered mean field theory. Spin-lattice relaxation rates in zero applied field give clear evidence for critical slowing down of Mn spin fluctuations over a wide temperature range, and are consistent at low temperatures with a two magnon Raman scattering mechanism.en_US
dc.format.digitalOriginreformatted digitalen_US
dc.format.extent55 ppen_US
dc.identifier.callnoThesis Phys. 1983 Gisten_US
dc.identifier.citationGist, Grant Alan. "Muon spin relaxation in a random ferromagnet: PdMn." (1983) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/104144">https://hdl.handle.net/1911/104144</a>.en_US
dc.identifier.digitalRICE1771en_US
dc.identifier.urihttps://hdl.handle.net/1911/104144en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.titleMuon spin relaxation in a random ferromagnet: PdMnen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysicsen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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