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Small Signal Differential Mobility of Planar Superlattice Miniband Transport and Negative Differential Conductance

  • X. L. Lei
  • N. J. M. Horing
  • H. L. Cui
  • K. K. Thornber
Part of the NATO ASI Series book series (NSSB, volume 342)

Abstract

We study the phenomenon of negative differential conductance (NDC) in Bloch miniband superlattices originally predicted by (1970). For device purposes, it is important to characterize transport in a small-signal ac electric field superposed on a dc bias field. We report here the results of a theoretical study carried out for a GaAs-based planar superlattice. Employing a microscopic balance equation formulation, we include all dissipative-scattering mechanisms and relatively strong electron-electron interactions (Lei et al., 1991, 1992, 1993a, 1993b; Lei, 1992a, 1992b). Relaxation-time approximations are not used.

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References

  1. Allen, S. J., Tsui, Jr., D. C., De Rosa, F., Thornber, K. K., and Wilson, B. A., 1981, J. de Phys.42, 369.CrossRefGoogle Scholar
  2. Esaki, L., and Tsu, R., 1970, IBM J. Res. Dev.14:61.CrossRefGoogle Scholar
  3. Lei, X. L., 1992a, Phys. Stat. Sol. (b)170:519.ADSCrossRefGoogle Scholar
  4. Lei, X. L., 1992b, J. Phys. Conden. Matter4:L659.ADSCrossRefGoogle Scholar
  5. Lei, X. L., Horing, N. J. M., and Cui, H. L., 1991, Phys. Rev. Lett.66:3277.ADSCrossRefGoogle Scholar
  6. Lei, X. L., Horing, N. J. M., and Cui, H. L., 1992, J. Phys: Condens. Matter4, 9375.ADSCrossRefGoogle Scholar
  7. Lei, X. L., Horing, N. J. M., Cui, H. L., and Thornber, K. K., 1993a, Phys. Rev. B48:5366.ADSCrossRefGoogle Scholar
  8. Lei, X. L., Horing, N. J. M., Cui, H. L., and Thornber, K. K., 1993b, Solid State Commun.86:231.ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • X. L. Lei
    • 1
    • 2
  • N. J. M. Horing
    • 2
  • H. L. Cui
    • 2
  • K. K. Thornber
    • 3
  1. 1.State Key Lab. of Functional Materials for Informatics Shanghai Inst. of MetallurgyChinese Academy of SciencesShanghaiChina
  2. 2.Department of Physics and Engineering PhysicsStevens Inst. of TechnologyHobokenUSA
  3. 3.NEC Research InstPrincetonUSA

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