Systematic Investigation of the Pr-Ba-Cu-O Phase Diagram

Simple item page
dc.contributor.advisorChu, Paul C. W.
dc.contributor.committeeMemberJacobson, Allan J.
dc.contributor.committeeMemberBassler, Kevin E.
dc.contributor.committeeMemberTing, Chin-Sen
dc.creatorMastalli-Kelly, Luke Galen 1992-
dc.creator.orcid0000-0003-4571-9273
dc.date.accessioned2019-11-08T01:55:42Z
dc.date.createdAugust 2019
dc.date.issued2019-08
dc.date.submittedAugust 2019
dc.date.updated2019-11-08T01:55:42Z
dc.description.abstractThis dissertation reports on an investigation into the longstanding mystery of why praseodymium barium cuprate is the only member of the $RBa_2Cu_3O_{7-y}$ family (which includes $RBa_2Cu_4O_8$ and $R_2Ba_4Cu_7O_{15}$) that has been synthesized with orthorhombic structure that is non-superconducting, juxtaposed with several contradictory reports of superconductivity. I walk through all of the possible contributors towards anomalous superconductivity based on existing reports: aluminum contamination/doping, alternate phases, and different stoichiometries. For all of these options, I find that the compounds are non-superconducting via magnetic and electronic measurements, only leaving the possibility of stress/strain induced superconductivity unexplored. In the process, I determine that the heat treatment reported to yield superconductivity in \PBCO (Pr123) results in the formation of significant quantities of $Pr_2Ba_1Cu_1O_5$ (Pr211) to form. I further establish that the three compounds: \PBCO, \PrTFS (Pr247), and $PrBa_2Cu_4O_8$ (Pr124), belong to a single incommensurate structure.
dc.description.departmentPhysics, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttps://hdl.handle.net/10657/5316
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectPraseodymium
dc.subjectSuperconductivity
dc.titleSystematic Investigation of the Pr-Ba-Cu-O Phase Diagram
dc.type.dcmiText
dc.type.genreThesis
local.embargo.lift2021-08-01
local.embargo.terms2021-08-01
thesis.degree.collegeCollege of Natural Sciences and Mathematics
thesis.degree.departmentPhysics
thesis.degree.disciplinePhysics
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy

Files

Original bundle

Now showing 1 - 2 of 2
Thumbnail Image
Name:
MASTALLI-KELLY-DISSERTATION-2019.pdf
Size:
3.3 MB
Format:
Adobe Portable Document Format
Download
No Thumbnail Available
Name:
Thesis%20Final%20Draft.zip
Size:
6.98 MB
Format:
Unknown data format
Download

License bundle

Now showing 1 - 2 of 2
No Thumbnail Available
Name:
PROQUEST_LICENSE.txt
Size:
4.43 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
LICENSE.txt
Size:
1.82 KB
Format:
Plain Text
Description:
Download

Collections

Published ETD Collection