THE STUDY OF ELECTRONIC STRUCTURE AND COMPUTATION OF TRANSITION PHASE PARAMETERS IN HIGH TEMPERATURE SUPERCONDUCTORS

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dc.contributor.authorIBEH, GODWIN JOSEPH
dc.date.accessioned2014-02-05T10:59:31Z
dc.date.available2014-02-05T10:59:31Z
dc.date.issued2000-08
dc.descriptionBeing a thesis submitted to the Postgraduate School, Ahmadu Bello University, Zaria in Partial fulfillment of the requirement for the award of Master of Science in Physics.en_US
dc.description.abstractInvestigations on the electronic structure of high temperature superconductors are studied. This work showed that there have been tremendous efforts devoted to developing suitable theories and mechanisms of the high temperature superconductivity. Many of these theories are BCS-based even though certain behaviour of the high Tc oxide superconductors such as: the linear dc resistivity with temperature, a Hall coefficient that is temperature dependent, the presence of short coherence lengths etc., suggest that the normal state cannot be described by a Fermiliquid. The study also covers details of possible applications of the devices using high-Tc superconductors, which are mostly based on the Josephson junction of the high-Tc oxide superconductors. An attempt has been made to evaluate the two- and three - dimensional phase transition temperatures of some of the known high-temperature superconductors, based on a recent phenomenological theory of cuprate oxides. The theory assumes two criteria used to calculate the superconducting transition temperatures. One is that the quantum wavelength is of the order of the electron pair spacing. The other is that the fraction of the normal carriers exists as Cooper pairs at Tc. Thus, the model provides a self-consistent condition that the number of pairs that Bose-Einstein condenses is approximately equal to Tc itself. The results of this calculation are found to agree reasonably well with the available experimental data.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/301
dc.language.isoenen_US
dc.subjectSTUDYen_US
dc.subjectELECTRONICen_US
dc.subjectSTRUCTUREen_US
dc.subjectCOMPUTATIONen_US
dc.subjectTRANSITIONen_US
dc.subjectPHASEen_US
dc.subjectPARAMETERSen_US
dc.subjectHIGHen_US
dc.subjectTEMPERATUREen_US
dc.subjectSUPERCONDUCTORSen_US
dc.titleTHE STUDY OF ELECTRONIC STRUCTURE AND COMPUTATION OF TRANSITION PHASE PARAMETERS IN HIGH TEMPERATURE SUPERCONDUCTORSen_US
dc.typeThesisen_US
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