Successful application of a modified ambegaokar-halperin model to fit the current-voltagecharacteristics of bulk PbHgBaCaCUO

We report measurements of the current-voltage (I–V) characteristics of a sample of Pb 0.2Hg 0.8Ba 2Ca 1.25Cu 3O x at 77 K, 27 K and 4.2 K in applied magnetic fields varying from 0 to 6 T. These data are fitted very well by a modified Ambegaokar-Halperin model. Useful information about the material,...

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Bibliographic Details
Published in:Cryogenics (Guildford) 1994, Vol.34, p.821-828
Main Authors: Soulen, R.J., Francavilla, T.L., Drews, A.R., Toth, L., Lechter, W.L., Osofsky, M.S.
Format: Article
Language:English
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Summary:We report measurements of the current-voltage (I–V) characteristics of a sample of Pb 0.2Hg 0.8Ba 2Ca 1.25Cu 3O x at 77 K, 27 K and 4.2 K in applied magnetic fields varying from 0 to 6 T. These data are fitted very well by a modified Ambegaokar-Halperin model. Useful information about the material, including its critical current and pinning potential, may be obtained from the fits.
ISSN:0011-2275
1879-2235
DOI:10.1016/S0011-2275(05)80194-8