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dc.contributor.authorÖzyüzer, Lütfi
dc.contributor.authorZasadzinski, John F.
dc.contributor.authorGray, Kenneth E.
dc.contributor.authorHinks, David G.
dc.contributor.authorMiyakawa, Nobuaki
dc.date.accessioned2016-05-30T13:56:43Z
dc.date.available2016-05-30T13:56:43Z
dc.date.issued2003-06
dc.identifier.citationÖzyüzer, L., Zasadzinski, J. F., Gray, K. E., Hinks, D. G., and Miyakawa, N. (2003). Probing the phase diagram of Bi2Sr2CaCu 2O8+δ with tunneling spectroscopy. IEEE Transactions on Applied Superconductivity, 13(2), 893-896. doi:10.1109/TASC.2003.814072en_US
dc.identifier.issn1051-8223
dc.identifier.urihttp://doi.org/10.1109/TASC.2003.814072
dc.identifier.urihttp://hdl.handle.net/11147/4688
dc.description.abstractTunneling measurements are performed on Ca-rich single crystals of Bi 2Sr2CaCu2O8+δ (Bi2212), with various oxygen doping levels, using a novel point contact method. At 4.2 K, SIN and SIS tunnel junctions are obtained with well-defined quasiparticle peaks, robust dip and hump features and in some cases Josephson currents. The doping dependence of tunneling conductances of Ca-rich Bi2212 are analyzed and compared to stoichiometric Bi2212. A similar profile of energy gap vs. doping concentration is found although the Ca-rich samples have a slighly smaller optimum Tc and therefore smaller gap values for any doping level. The evolution of tunneling conductance peak height to background ratios with hole concentration are compared. For a given doping level, the Ca-rich spectra showed more broadened features compared to the stoichiometric counterparts, most likely due to increased disorder from the excess Ca. Comparison of the dip and hump features has provided some potential insights into their origins.en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relation.isversionof10.1109/TASC.2003.814072en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectOxide superconductorsen_US
dc.subjectTunneling conductanceen_US
dc.subjectHigh temperature superconductorsen_US
dc.subjectJosephson junctionsen_US
dc.titleProbing the phase diagram of Bi2Sr2CaCu 2O8+δ with tunneling spectroscopyen_US
dc.typeconferenceObjecten_US
dc.contributor.authorIDTR5135en_US
dc.contributor.iztechauthorÖzyüzer, Lütfi
dc.relation.journalIEEE Transactions on Applied Superconductivityen_US
dc.contributor.departmentIzmir Institute of Technology. Physicsen_US
dc.identifier.volume13en_US
dc.identifier.issue2en_US
dc.identifier.startpage893en_US
dc.identifier.endpage896en_US
dc.identifier.wosWOS:000184241700203
dc.identifier.scopusSCOPUS:2-s2.0-0041975815


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