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http://hdl.handle.net/11375/6187
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DC Field | Value | Language |
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dc.contributor.advisor | Greedan, J.E. | en_US |
dc.contributor.author | Goral, Paul John | en_US |
dc.date.accessioned | 2014-06-18T16:34:24Z | - |
dc.date.available | 2014-06-18T16:34:24Z | - |
dc.date.created | 2010-04-06 | en_US |
dc.date.issued | 1982-12 | en_US |
dc.identifier.other | opendissertations/1516 | en_US |
dc.identifier.other | 2177 | en_US |
dc.identifier.other | 1263605 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/6187 | - |
dc.description.abstract | <p>The magnetic structures of LaTiO₃ and CeTiO₃ were determined by neutron diffraction. LaTiO₃ is a G-type antiferromagnet. The Ti³⁺ sublattice in CeTiO₃ displays G-type and possibly F-type ordering. The Ce³⁺ sublattice exhibits F-type and C-type components.</p> <p>Solid solutions of the form La͓Y₁₋͓TiO₃ and La͓Gd₁₋͓TiO₃ were prepared. Magnetic measurements suggest a weakening of the antiferromagnetic Ti-O-Ti exchange as the Ti-O-Ti bond angle decreases from 157°(LaTiO₃). For sufficiently small bond angle, the Ti-Ti exchange becomes ferromagnetic. Crystal field calculations based on a localized Ti³⁺ 3d¹ electron have reproduced the general features of susceptibility data reported for La͓Y₁₋͓TiO₃ (x=0,.1,.2,.4,.7). This is in agreement with resistivity measurements undertaken on La.₁.₉TiO₃ and La.₂Y.₈TiO₃ which are characteristic of an activated transport mechanism.</p> | en_US |
dc.subject | Chemistry | en_US |
dc.subject | Chemistry | en_US |
dc.title | The Magnetic Properties of the Systems La͓Y₁₋͓TiO₃, La͓Gd₁₋͓TiO₃, LaTiO₃ and CeTiO₃ | en_US |
dc.type | thesis | en_US |
dc.contributor.department | Chemistry | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
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fulltext.pdf | 2.46 MB | Adobe PDF | View/Open |
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