The Magnetic Properties of the Systems La͓Y₁₋͓TiO₃, La͓Gd₁₋͓TiO₃, LaTiO₃ and CeTiO₃

Goral, Paul John

Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/6187

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DC Field	Value	Language
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
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