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Semiconductors

, Volume 40, Issue 10, pp 1178–1187 | Cite as

Concentration-elastic-stress instabilities in the distribution of ions and neutral particles in the insulator layer at the semiconductor surface

  • E. I. Gol’dman
Semiconductor Structures, Interfaces, and Surfaces
  • 20 Downloads

Abstract

Mobile impurities in the form of ions and neutral associations are present in the insulator films that isolate the semiconductor from the metal electrode. If temperatures and the polarizing electric field are sufficiently high, impurities concentrate at the insulator-semiconductor interface where they exchange electrons with the semiconductor. It is shown that the pairwise interaction of particles via the field of elastic stresses caused by the concentration-related expansion of the insulator can give rise to an instability in the impurity distribution that is uniform over the contact. The stationary small-scale ordering of the particles over the contact of the insulator with the semiconductor arises in the solution of point defects, which is accompanied by annular flows of the particles.

PACS numbers

68.55.Ln 73.20.Hb 73.40.Qv 

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Copyright information

© Pleiades Publishing, Inc. 2006

Authors and Affiliations

  • E. I. Gol’dman
    • 1
  1. 1.Institute of Radio Engineering and Electronics (Fryazino Branch)Russian Academy of SciencesFryazino, Moscow oblastRussia

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