Tunneling spectroscopy of Tl2Ba2CaCu2O8 single crystals and thin films

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dc.creatorMazur, Daniel
dc.creatorZasadzinski, J. F.
dc.creatorGray, K. E.
dc.creatorMa, Y. C.
dc.creatorWang, N. L.
dc.creatorYan, S. L.
dc.date2006-11-27
dc.date.accessioned2026-07-07T07:31:28Z
dc.date.available2026-07-07T07:31:28Z
dc.descriptionEarly electron tunneling experiments with the Tl2Ba2CaCu2O8 measured Δ= 16-28 meV, while bulk optical experiments measured Δ= 43-45 meV. We report new tunneling measurements of Tl2Ba2CaCu2O8 single crystals and c-axis oriented thin films, where the measured Δvalues on both sample types cover the range of 24-50 meV, with more than 70% of the junctions displaying Δ> 30 meV. This work resolves the inconsistency between previously published results of tunneling and optical experiments. New tunneling conductances reveal improved superconducting gap region characteristics consistent with d-wave symmetry. The tunneling spectra also display features similar to the dip feature observed in Bi2Sr2CaCu2O8. We discuss our results in context of experiments reported previously on related materials.
dc.description7 pages, 4 figures, 1 table, submitted to Physical Review B
dc.identifierhttps://arxiv.org/abs/cond-mat/0611636
dc.identifierhttp://arxiv.org/abs/cond-mat/0611636
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118767
dc.subjectSuperconductivity
dc.titleTunneling spectroscopy of Tl2Ba2CaCu2O8 single crystals and thin films
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