Investigation of "conventional" superconductivity in ternary cerium compounds through high pressure studies

dc.contributor.author Athreya, Krishna
dc.contributor.department Physics and Astronomy
dc.date 2018-08-17T02:04:21.000
dc.date.accessioned 2020-07-02T06:04:59Z
dc.date.available 2020-07-02T06:04:59Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 1986
dc.date.issued 1986
dc.description.abstract <p>The present investigation focuses on the nature and mechanism of superconductivity in the cerium-containing ternary borides and silicides: CeRu(,3)B(,2), CeOs(,3)B(,2), and CeRu(,3)Si(,2). These are the only ternary cerium compounds where "conventional" (as opposed to heavy fermion) superconductivity has been observed to date;The closely related crystal structures (all related to the CeCo(,3)B(,2)-type, P6/mmm) enabled the study of the effect on superconductivity of transforming continuously from one system to the other by going across the pseudoternary series Ce (Ru(,1-x)Os(,x))(,3)B(,2) and CeRu(,3)- (B(,x)Si(,1-x))(,2). These pseudoternary systems were subjected to high external pressures using a standard hydrostatic pressure clamp for lower pressures (up to 20 kbar) and a specially designed diamond anvil cell for higher pressures (up to 66 kbar). Trends are presented for the variation of the superconducting transition temperatures with changes in external pressure;Results are also included from measurements of static magnetic susceptibility and electrical resistivity of all of the materials in the;series Ce(Ru(,1-x)Os(,x))(,3)B(,2) and CeRu(,3)(B(,x)Si(,1-x))(,2). These provide some insight into the nature of the cerium valence in these compounds; *DOE Report IS-T-1216. This work was performed under contract No. W-7405-Eng-82 with the U.S. Department of Energy.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/8137/
dc.identifier.articleid 9136
dc.identifier.contextkey 6329033
dc.identifier.doi https://doi.org/10.31274/rtd-180813-13000
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/8137
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/81092
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/8137/r_8703684.pdf|||Sat Jan 15 02:07:04 UTC 2022
dc.subject.disciplines Condensed Matter Physics
dc.subject.keywords Physics
dc.subject.keywords Solid state physics
dc.title Investigation of "conventional" superconductivity in ternary cerium compounds through high pressure studies
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication 4a05cd4d-8749-4cff-96b1-32eca381d930
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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