Spin Fluctuations in Eliashberg Theory

Williams, Peter J.

Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/8365

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DC Field	Value	Language
dc.contributor.advisor	Carbotte, J.P.	en_US
dc.contributor.author	Williams, Peter J.	en_US
dc.date.accessioned	2014-06-18T16:42:41Z	-
dc.date.available	2014-06-18T16:42:41Z	-
dc.date.created	2010-11-28	en_US
dc.date.issued	1990-07	en_US
dc.identifier.other	opendissertations/3575	en_US
dc.identifier.other	4592	en_US
dc.identifier.other	1663119	en_US
dc.identifier.uri	http://hdl.handle.net/11375/8365	-
dc.description.abstract	<p>In this thesis, we have studied the properties of a superconductor in which there are two competing dynamical interactions. One of the interactions promotes the pairing, while the other is pair breaking. We have studied the model in the framework of Eliashberg theory for the complete range of coupling strengths. from weak coupling (BCS) to the extreme strong coupling limit. We find that there are distinctive signatures in the specific heat results that are not found in a model with no dynamical pair breaking.</p> <p>The work was motivated by the fact that the parent compounds of most of the high-Tc superconductors are antiferromagnetic insulators. In the superconducting state, spin fluctuations have been observed, at least in LaSrCuO and YBaCuO. For an s-wave superconductor, spin fluctuations are pair breaking. The observed thermodynamic data are consistent with the model that we have studied.</p>	en_US
dc.subject	Physics	en_US
dc.subject	Physics	en_US
dc.title	Spin Fluctuations in Eliashberg Theory	en_US
dc.type	thesis	en_US
dc.contributor.department	Physics	en_US
dc.description.degree	Doctor of Philosophy (PhD)	en_US
Appears in Collections:	Open Access Dissertations and Theses

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