Point-contact tunnelling measurements of Tl-Pb-Ca-Pr-Sr-Cu-O

We report point-contact tunnelling measurements of the high-T sub(c) superconductor (Tl sub(0.5)Pb sub(0.5))(Ca sub(0.8)Pr sub(0.2))Sr sub(2)Cu sub(2)O sub(y). The I-V characteristics clearly show an energy gap and are qualitatively similar to those of a classical S-I-S tunnel junction with 2 Delta...

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Bibliographic Details
Published in:Superconductor science & technology 1991-01, Vol.4 (1S), p.S190-S192
Main Authors: Chandler, S J, Adkins, C J
Format: Article
Language:English
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Summary:We report point-contact tunnelling measurements of the high-T sub(c) superconductor (Tl sub(0.5)Pb sub(0.5))(Ca sub(0.8)Pr sub(0.2))Sr sub(2)Cu sub(2)O sub(y). The I-V characteristics clearly show an energy gap and are qualitatively similar to those of a classical S-I-S tunnel junction with 2 Delta /k sub(b)T sub(c) of 5.1.
ISSN:0953-2048
1361-6668
DOI:10.1088/0953-2048/4/1S/049