Thermoelectric power and thermal conduction studies on the Nd substituted BPSCCO (2234) superconductors

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dc.authoridAksan, Mehmet Ali/0000-0001-9465-0319
dc.authoridOZKURT, BERDAN/0000-0002-7837-9773
dc.authorwosidÖzçelik, Bekir/C-5986-2018
dc.authorwosidAksan, Mehmet Ali/AAA-4187-2021
dc.authorwosidAksan, Mehmet Ali/AAE-8854-2021
dc.authorwosidOzkurt, Berdan/L-3100-2016
dc.contributor.authorOzkurt, Berdan
dc.contributor.authorOcelik, Bekir
dc.contributor.authorKiymac, Kerim
dc.contributor.authorAksan, M. Ali
dc.contributor.authorYakinci, M. Eyyuephan
dc.date.accessioned2024-08-04T20:30:38Z
dc.date.available2024-08-04T20:30:38Z
dc.date.issued2007
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this study, we have carried out thermoelectric power (S-T) and thermal conductivity (kappa-T) measurements from room temperature down to 15 K on Bi1.7Pb0.3-xNdxSr2Ca3Cu4O12+y samples, where 0.0 <= x <= 0.1. The thermoelectric powers, S(T), of the samples have both negative (at high T) and positive values (at low T), and are found to increase with decreasing temperature, reaching maxima (peaks) around their T, values and to drop rapidly to zero below T,. The magnitude of the peaks decreases with increasing Nd-content. The results obtained have been analyzed in terms of the two-band model with linear T-term and Xin's two-band model. A very good agreement between the first model and our thermoelectric power data is obtained, but the fit to the second model is poor. The fittings to the models indicate that while the electrons are effective at higher temperatures, the holes become dominant at lower temperatures, the number of holes and the Fermi energies decrease with increasing Nd-content. Nd substitution also has a considerable effect on the thermal conductivity, kappa. A broad maximum is obtained on kappa versus T plot, just below the T, value of each sample. However, the peaks decrease in intensity and also broaden with increasing Nd concentration. This behavior is believed to be due to the scattering of the carriers. (c) 2007 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.physc.2007.09.009
dc.identifier.endpage119en_US
dc.identifier.issn0921-4534
dc.identifier.issn1873-2143
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-36148997583en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage112en_US
dc.identifier.urihttps://doi.org/10.1016/j.physc.2007.09.009
dc.identifier.urihttps://hdl.handle.net/11616/94398
dc.identifier.volume467en_US
dc.identifier.wosWOS:000251886000019en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysica C-Superconductivity and Its Applicationsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBi-based cupritesen_US
dc.subjecttransport properties (electric and thermal conductivity)en_US
dc.subjectthermoelectric poweren_US
dc.titleThermoelectric power and thermal conduction studies on the Nd substituted BPSCCO (2234) superconductorsen_US
dc.typeArticleen_US

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