Poddar, A and Mandal, P and Das, A N and Ghosh, B and Choudhury, Pranab (1989) Excess conductivity in Tl1Ca3Ba1Cu3Ox and Bi1Ca1Sr1Cu2Ox systems due to thermodynamic fluctuations. Physica C-Superconductivity and its Applications, 159 (3). pp. 231-238. ISSN 0921-4534

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The excess conductivity (Δσ) in Tl1Ca3Ba1Cu3Oχ and Bi1Ca3Sr1Cu2Oχ (nominal compositions) is determined using the linear extrapolation method and Anderson-Zou formula. Δσ for the TI-system shows a 2-dimensional character and is well described by the Aslamazov-Larkin (A-L) contribution for a layered superconductor. The interlayer coupling for the TI-system is found to be very small. The excess conductivity in a magnetic field perpendicular to the current direction Δσ⊥(H), for T≤Tc and H≥62; Hc2 shows a 3-dimensional character. Similar behavior is also observed in the Bi-system.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 05 Dec 2013 11:42
Last Modified: 19 Mar 2016 18:10
URI: http://cgcri.csircentral.net/id/eprint/2429

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