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Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge

Publication ,  Journal Article
Teitsworth, SW; Westervelt, RM
Published in: Physica D: Nonlinear Phenomena
January 1, 1986

We report an experimental measurement of nonlinear dc current-voltage (I-V) characteristics in p-type Ge extrinsic photoconductors at liquid He temperatures which exhibit a region of voltage-controlled negative differential resistance (NDR) above the threshold for impurity breakdown, accompanied by a spontaneous current oscillation of frequency fs ∼ 5 to 10 kHz. The dc I-V characteristics are well explained in terms of a simple rate equation model and, it is argued, the spontaneous current oscillations are due to moving space charge waves which arise from a negative differential rate of impurity impact ionization. © 1986.

Duke Scholars

Published In

Physica D: Nonlinear Phenomena

DOI

ISSN

0167-2789

Publication Date

January 1, 1986

Volume

23

Issue

1-3

Start / End Page

181 / 186

Related Subject Headings

  • Fluids & Plasmas
  • 4903 Numerical and computational mathematics
  • 4902 Mathematical physics
  • 4901 Applied mathematics
  • 0102 Applied Mathematics
 

Citation

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Teitsworth, S. W., & Westervelt, R. M. (1986). Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge. Physica D: Nonlinear Phenomena, 23(1–3), 181–186. https://doi.org/10.1016/0167-2789(86)90126-0
Teitsworth, S. W., and R. M. Westervelt. “Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge.” Physica D: Nonlinear Phenomena 23, no. 1–3 (January 1, 1986): 181–86. https://doi.org/10.1016/0167-2789(86)90126-0.
Teitsworth SW, Westervelt RM. Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge. Physica D: Nonlinear Phenomena. 1986 Jan 1;23(1–3):181–6.
Teitsworth, S. W., and R. M. Westervelt. “Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge.” Physica D: Nonlinear Phenomena, vol. 23, no. 1–3, Jan. 1986, pp. 181–86. Scopus, doi:10.1016/0167-2789(86)90126-0.
Teitsworth SW, Westervelt RM. Nonlinear current-voltage characteristics and spontaneous current oscillations in p-Ge. Physica D: Nonlinear Phenomena. 1986 Jan 1;23(1–3):181–186.
Journal cover image

Published In

Physica D: Nonlinear Phenomena

DOI

ISSN

0167-2789

Publication Date

January 1, 1986

Volume

23

Issue

1-3

Start / End Page

181 / 186

Related Subject Headings

  • Fluids & Plasmas
  • 4903 Numerical and computational mathematics
  • 4902 Mathematical physics
  • 4901 Applied mathematics
  • 0102 Applied Mathematics