Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4526
Title: High energy secondary peak structure in tunneling spectra (hump) as possible magnetic pseudogap
Authors: Zasadzinski, John F.
Özyüzer, Lütfi
Miyakawa, Nobuaki
Hinks, David G.
Gray, Kenneth E.
Keywords: Oxide superconductors
Electric conductance
Energy gap
Superconducting gap
Angle integrated photoemission
Publisher: Elsevier Ltd.
Source: Zasadzinski, J. F., Özyüzer, L., Miyakawa, N., Hinks, D. G., and Gray, K. E. (2000). High energy secondary peak structure in tunneling spectra (hump) as possible magnetic pseudogap. Physica C: Superconductivity and its Applications, 341-348(PART 3), 867-870. doi:10.1016/S0921-4534(00)00715-2
Abstract: It is demonstrated that tunneling spectra in various high Tc cuprates display generic features. The principal conductance peaks in superconductor-insulator-normal metal (SIN) junctions indicate the superconducting gap in the density of states (DOS), Higher energy features include a dip and hump structure with a strength that is asymmetric in bias voltage. The dip and hump features follow the doping trends of the superconducting gap, Δ, with a rough scaling as ∼2Δ and ∼3Δ respectively. Tunneling spectra in underdoped Bi2Sr2CaCu2O8+δ display a more pronounced hump feature suggestive of a second gap in the DOS. It is observed that the hump feature in the tunneling density of states is consistent with other experimental observations of the so-called high energy pseudogap which may have magnetic origins
URI: http://doi.org/10.1016/S0921-4534(00)00715-2
http://hdl.handle.net/11147/4526
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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