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http://hdl.handle.net/11375/8428
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DC Field | Value | Language |
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dc.contributor.advisor | Greedan, J.E. | en_US |
dc.contributor.author | Nyokong, Tebello | en_US |
dc.date.accessioned | 2014-06-18T16:42:53Z | - |
dc.date.available | 2014-06-18T16:42:53Z | - |
dc.date.created | 2010-12-05 | en_US |
dc.date.issued | 1981 | en_US |
dc.identifier.other | opendissertations/3634 | en_US |
dc.identifier.other | 4651 | en_US |
dc.identifier.other | 1671464 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/8428 | - |
dc.description.abstract | <p>The magnetic susceptibilities of α and β-Li₂Eu₅O₈ powders have been measured. These compounds have ferromagnetic interactions within a chain of Eu²⁺ ions and antiferromagnetic interactions between the chains. The interactions between the chains are very weak and both compounds can be considered to be nearly ideal examples of one dimensional ferromagnets.</p> <p>No three-dimensional ordering was observed in VTa₂O₆ down to a temperature of 10K, contrary to the observation of TN = 24K by Bernier (6). The critical temperature which Bernier observed was probably due to a two-dImensional ordering.</p> <p>The atomic parameters for VTa₂O₆ calculated from the powder neutron data, compare well with the atomic parameters of other trirutiles.</p> | en_US |
dc.subject | Chemistry | en_US |
dc.subject | Chemistry | en_US |
dc.title | The Magnetic Properties of α and β-Li₂Eu₅O₈ and Neutron Diffraction of VTa₂O₆ | 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 |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 1.93 MB | Adobe PDF | View/Open |
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