Monte Carlo Simulations of Spatial Correlations of Charged Centers in δ-Doped Layers

P. Sobkowicz; Z. Wilamowski; J. Kossut

doi:10.12693/APhysPolA.82.645

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Acta Physica Polonica A

1992 | 82 | 4 | 645-648

Article title

Monte Carlo Simulations of Spatial Correlations of Charged Centers in δ-Doped Layers

Authors

P. Sobkowicz , Z. Wilamowski , J. Kossut

Content

http://przyrbwn.icm.edu.pl/APP/PDF/82/a082z4p18.pdf [remote]

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Abstracts

Results of Monte Carlo simulations of a 2D system of charged donors are presented. They enable to study the effects related to a spatial correlation of donor charges located on a random donor matrix. A qualitative difference between DX^{+} and DX¯ models is observed. In the first case, strong temperature dependence of the correlations and a "freezing-like" behaviour is found. The origin of the freezing is traced to the random distribution of donor sites by comparing the system with a liquid-like model where the charges may assume arbitrary positions within a plane. In the second case only nearest-neighbour correlations are observed. The simulations have direct application in analysis of the behaviour of the DX centers in the GaAs planarly doped with Si.

Keywords

71.55.Eq 73.20.Dx 71.45.Gm

Publisher

Institute of Physics, Polish Academy of Sciences

Journal

Acta Physica Polonica A

Year

1992

Volume

Issue

Pages

645-648

Physical description

Dates

published

1992-10

References

Document Type

Publication order reference

YADDA identifier

bwmeta1.element.bwnjournal-article-appv82z418kz

Identifiers

DOI

10.12693/APhysPolA.82.645