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Pulse measurement of the I–V characteristics in Bi-2212 intrinsic junctions

  • HTSC—Granular Superconductors
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

Current-voltage (I–V) characteristics are studied in the intrinsic Josephson junctions of Bi2Sr2CaCu2Oy single crystals. In order to examine the influence of self-heating, a current pulse (∼0.2 μsec) is applied to the mesas of 40 μmϕx0.15 μm patterned on the crystal. As a consequence, in contrast to small characteristic voltageV c in the continuous-current measurement, theV c data is found comparable to the BCS value. Moreover, theI–V curve is nearly ohmic forl>l c , implying that the nonlinearity under the continuous current is due to heating. The quasiparticle resistance forT<T c is also presented by an estimate from the characteristic voltage.

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Authors and Affiliations

  1. Department of Computer Science and Electronics, Kyushu Institute of Technology, Iizuka, 820, Fukuoka, Japan

    Takashi Yasuda & Shuzo Takano

  2. Communications Research Laboratory, Kansai Advanced Research Center, Nishi-ku, 651-24, Kobe, Japan

    Masayoshi Tonouchi

Authors
  1. Takashi Yasuda
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  2. Masayoshi Tonouchi
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  3. Shuzo Takano
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Yasuda, T., Tonouchi, M. & Takano, S. Pulse measurement of the I–V characteristics in Bi-2212 intrinsic junctions. Czech J Phys 46 (Suppl 3), 1265–1266 (1996). https://doi.org/10.1007/BF02562747

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  • DOI: https://doi.org/10.1007/BF02562747

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