Doping induced quantum phase transition in the itinerant ferromagnet scandium indium

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dc.contributor.advisorMorosan, Emiliaen_US
dc.creatorSvanidze, Eterien_US
dc.date.accessioned2013-03-08T00:39:29Zen_US
dc.date.available2013-03-08T00:39:29Zen_US
dc.date.issued2012en_US
dc.description.abstractExamination of quantum critical points of itinerant electron systems will aid with understanding of d-electron magnetism that exhibits both local and itinerant characteristics in different families of compounds. Doping-induced quantum phase transition of the itinerant ferromagnet Sc 3.1 In that is composed of non-magnetic elements is the focus of our work. Polycrystalline samples of (Sc 1-x Lu x ) 3.1 In with 0≤ x≤ 0.08 were prepared by arcmelting and then annealing for an extended period of time. Susceptibility measurements were performed in an applied magnetic field H = 0.1 T for temperatures T = 1.85 K to 300 K. Linearity of Arrott plots in low-field region was significantly improved by implementing the non-mean-field Arrott-Noakes technique where plotting M 1/β vs. ( H/M ) 1/γ is used to determine both the Curie temperature and composition. Modified Arrott plot approach was used in order to determine the new critical exponents β, γ and δ that better describe this compound. The Curie temperature of the Sc 3.1 In compound was found to be T C = 4.4 K and the critical composition x c = 0.02. This work was supported by NSF DMR 0847681.en_US
dc.format.extent48 p.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS PHYS. 2012 SVANIDZEen_US
dc.identifier.citationSvanidze, Eteri. "Doping induced quantum phase transition in the itinerant ferromagnet scandium indium." (2012) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/70464">https://hdl.handle.net/1911/70464</a>.en_US
dc.identifier.digitalSvanidzeEen_US
dc.identifier.urihttps://hdl.handle.net/1911/70464en_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.subjectPure sciencesen_US
dc.subjectElectromagneticsen_US
dc.subjectCondensed matter physicsen_US
dc.titleDoping induced quantum phase transition in the itinerant ferromagnet scandium indiumen_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 Scienceen_US
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