Bias Current Dependence of the Work Function of the Oxide Superconductor, Bi2Sr2CaCu2O8 Cleaved at Low Temperature

DOI Web Site 8 References
  • HIRAGA Mitsutaka
    Department of Electrical Engineering, Faculty of Engineering, Tokyo University of Science
  • MIKI Kiyotaka
    Department of Electrical Engineering, Faculty of Engineering, Tokyo University of Science
  • KONDO Yotaro
    Department of Electrical Engineering, Faculty of Engineering, Tokyo University of Science
  • FUKAYA Shyunsuke
    Department of Electrical Engineering, Faculty of Engineering, Tokyo University of Science
  • SAITO Shigeru
    Department of Electrical Engineering, Faculty of Engineering, Tokyo University of Science

Bibliographic Information

Other Title
  • 低温へき開された酸化物超伝導体Ｂｉ２Ｓｒ２ＣａＣｕ２Ｏ８の仕事関数のバイアス電流依存性
  • テイオンヘキカイサレタ サンカブツ チョウデンドウタイ Bi2Sr2CaCu2O8 ノ シゴト カンスウ ノ バイアス デンリュウ イゾンセイ

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Abstract

Bias current dependence of the work function of the Bi2Sr2CaCu2O8 cleaved at about 30 K was measured by means of Kelvin-Zisman automatic method. In the superconductive state, the work function roses nonlinearly, and the temperature gradient of the work function also roses and became almost constant with the increase in the bias current. These results were discussed from the viewpoint of the contribution of the Fermi-energy and the surface dipole barrier.

Journal

  • Shinku

    Shinku 47 (3), 163-166, 2004

    The Vacuum Society of Japan

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