Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4530
Title: Superconducting gap and pseudogap from tunneling conductance on Bi2Sr2CaCu2Og+? with various oxygen concentration
Authors: Miyakawa, Nobuaki
Zasadzinski, John F.
Özyüzer, Lütfi
Guptasarma, Prasenjit
Kendziora, Christopher A.
Hinks, David G.
Kaneko, Tsutomu
Gray, Kenneth E.
Özyüzer, Lütfi
Izmir Institute of Technology. Physics
Keywords: Superconducting gap
Energy gap
Pseudogap
Tunneling (Physics)
Issue Date: Nov-2000
Publisher: Elsevier Ltd.
Source: Miyakawa, N., Zasadzinski, J. F., Özyüzer, L., Guptasarma, P., Kendziora, C. A., Hinks, D. G., Kaneko, T., and Gray, K. E. (2000). Superconducting gap and pseudogap from tunneling conductance on Bi2Sr2CaCu2Og+δ with various oxygen concentration. Physica C: Superconductivity and its Applications, 341-348(PART 3), 835-838. doi:10.1016/S0921-4534(00)00707-3
Abstract: The evolution of tunneling spectra on Bi2Sr2CaCu2Og+δ measured by SIN point contacts, SIS break junctions and STM/STS has been studied as a function of doping and temperature. The detailed examinations of the spectra show that the energy gap measured at low temperature appear to be due to superconducting pairing. The doping dependence of the superconducting gap at low temperature suggests a strong connection to the pseudogap temperature, T*, and this indicates that the pseudogap region is at least partly a consequence of some form of precursor superconductivity. In addition, dip/hump structures observed at high bias scale approximately with not only Δ but also superexchange interaction J over the entire doping range examined, indicating these features are linked to the underlying interaction responsible for superconductivity. We suggest that the hump structure may originate from short-range magnetic correlations
URI: http://doi.org/10.1016/S0921-4534(00)00707-3
http://hdl.handle.net/11147/4530
ISSN: 0921-4534
0921-4534
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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