Simulation model for self-ordering of strained islands in molecular-beam epitaxy

T. T. Ngo, P. M. Petroff, H. Sakaki, and J. L. Merz
Phys. Rev. B 53, 9618 – Published 15 April 1996
PDFExport Citation

Abstract

The growth of quasiordered ultrasmall InAs islands by molecular-beam epitaxy utilizing the intrinsic elastic strain between the islands and the substrate is a promising approach to fabricate regular arrays of defect-free quantum dots. In this paper, a simulation of the island growth kinetics based on a phenomenological approach that introduces an effective exclusion zone that mimics the strain effects surrounding a growing island is described. The simulation results, in qualitative agreement with experiments, show that the growth kinetics can induce a quasiordering in the island position if either the exclusion zone or the nuclei density is sufficiently large. © 1996 The American Physical Society.

  • Received 5 July 1995

DOI:https://doi.org/10.1103/PhysRevB.53.9618

©1996 American Physical Society

Authors & Affiliations

T. T. Ngo

  • Research Development Corporation of Japan (JRDC), 4-7-6 Komaba, Meguro-ku, Tokyo 153, Japan
  • Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106

P. M. Petroff

  • Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara, California 93106
  • Materials Department and Department of Electrical and Computer Engineering, University of California, Santa Barbara, California 93106

H. Sakaki

  • Research Development Corporation of Japan, 4-7-6 Komaba, Meguro-ku, Tokyo 153, Japan

J. L. Merz

  • Department of Electrical Engineering, University of Notre Dame, Notre Dame, Indiana 46556

References (Subscription Required)

Click to Expand
Issue

Vol. 53, Iss. 15 — 15 April 1996

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×