中国物理B ›› 1993, Vol. 2 ›› Issue (3): 220-229.doi: 10.1088/1004-423X/2/3/008

• • 上一篇    

LINEAR TUNNELING CONDUCTANCE AND INELASTIC-TUNNELING MODEL

刘楣a, 邢定钰b, 董锦明b   

  1. a. Department of Physics, Southeasterm University, Nanjing 210018, China; b. Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210008, China
  • 收稿日期:1992-01-14 出版日期:1993-03-20 发布日期:1993-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and the State Key Magnetism Laboratory, Institute of Physics, Academia Sinica, China.

LINEAR TUNNELING CONDUCTANCE AND INELASTIC-TUNNELING MODEL

LIU MEI (刘楣)a, XING DING-YU (邢定钰)b, DONG JIN-MING (董锦明)b   

  1. a Department of Physics, Southeasterm University, Nanjing 210018, China; b Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210008, China
  • Received:1992-01-14 Online:1993-03-20 Published:1993-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China and the State Key Magnetism Laboratory, Institute of Physics, Academia Sinica, China.

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摘要： The inelastic-tunneling model can be used to explain the linear conductance background observed in tunneling in the high-Tc oxide super conductors. Introducing a parameter into the tunneling Hamiltanian to describe the strength of on-site Coulomb repulsion, we have derived an expression for the inelastic-tunneling conductance. We further discuss what form of the spin-fluctuation propagators in the inelastic-tunneling model can produce the linear tunneling conductance which would agree well with the experimental data.

Abstract: The inelastic-tunneling model can be used to explain the linear conductance background observed in tunneling in the high-Tc oxide super conductors. Introducing a parameter into the tunneling Hamiltanian to describe the strength of on-site Coulomb repulsion, we have derived an expression for the inelastic-tunneling conductance. We further discuss what form of the spin-fluctuation propagators in the inelastic-tunneling model can produce the linear tunneling conductance which would agree well with the experimental data.

中图分类号: 

  • 7450