NDLI: Comparison of intrinsic Josephson and SIS tunneling spectroscopy of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta//

Content Provider	IEEE Xplore Digital Library
Author	Ozyuzer, L. Kurter, C. Zasadzinski, J.F. Gray, K.E. Hinks, D.G. Miyakawa, N.
Copyright Year	2002
Abstract	Tunneling spectroscopy measurements are reported on optimally-doped and overdoped Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta// single crystals. A novel point contact method is used to obtain superconductor-insulator-normal metal (SIN) and SIS break junctions as well as intrinsic Josephson junctions (IJJ) from nanoscale crystals. Three junction types are obtained on the same crystal to compare the quasiparticle peaks and higher bias dip/hump structures which have also been found in other surface probes such as scanning tunneling spectroscopy and angle-resolved photoemission spectroscopy. However, our IJJ quasiparticle spectra consistently reveal very sharp conductance peaks and no higher bias dip structures. The IJJ conductance peak voltage divided by the number of junctions in the stack consistently leads to a significant underestimate of /spl Delta/ when compared to the single junction values. The comparison of the three methods suggests that the markedly different characteristics of IJJ are a consequence of nonequilibrium effects and are not intrinsic quasiparticle features.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	181
Ending Page	184
Page Count	4
File Size	168415
File Format	PDF
ISSN	10518223
Volume Number	15
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tunneling Spectroscopy Bismuth Crystals Josephson junctions Strontium Superconducting devices Silicon compounds Probes Photoelectricity tunneling spectroscopy High- intrinsic Josephson junctions
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Probing the phase diagram of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta// with tunneling spectroscopy

Fabrication of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta// films and intrinsic Josephson junctions

Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta// intrinsic Josephson junctions fabricated by a simple technique without photolithography

Intrinsic Josephson effects in Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+x/ single crystals

Temperature dependence of the Josephson critical current in Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+x/ break junctions

Self-Heating Effect in Intrinsic Tunneling Spectroscopy of ${rm HgBr}_{2}$ Intercalated ${rm Bi}_{2.1}{rm Sr}_{1.4}{rm Ca}_{1.5}{rm Cu}_{2}{rm O}_{8+delta}$ Single Crystals

Fabrication of DC SQUIDs based on Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub y/ intrinsic Josephson junctions

Exfoliated Thin $hbox{Bi}_{2}hbox{Sr}_{2} hbox{CaCu}_{2}hbox{O}_{8 + delta}$ Single Crystal and Its Intrinsic Josephson Junctions

RF-induced steps in intrinsic Josephson junctions in Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub y/

Comparison of intrinsic Josephson and SIS tunneling spectroscopy of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8+/spl delta//

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