Studies of Charging Effects on Resonant Tunneling Diodes in Terms of Extended Friedel Sum Rule

Takayuki Mizuno, Mikio Eto, Kiyoshi Kawamura

Research output: Contribution to journalArticle

1 Citation (Scopus)


The Friedel sum rule is extended to express the electron number accumulated within an asymmetric potential well in terms of the phases of transmission and reflection amplitudes of a double-barrier potential, in the presence of a bias voltage and charging effects. It is applied to study non-equilibrium transport properties in asymmetric double-barrier systems. The current-voltage characteristics depends on the sign of the bias voltage, which is caused by the different accumulation of charges in the quantum well. Our self-consistent calculation shows the hysteresis in the current-voltage characteristics which agrees with the experimental observation.

Original languageEnglish
Pages (from-to)2594-2601
Number of pages8
JournalJournal of the Physical Society of Japan
Issue number8
Publication statusPublished - 1996 Jan 1



  • Asymmetric double-barrier
  • Charging effect
  • Friedel sum rule
  • Intrinsic bistability
  • Resonant tunneling

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this