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Two-dimensional ordering arrays of InAsxP1-x islands formed by As/P exchange reaction on InP (3 1 1)B surface

  • H. Z. Xu*
  • , K. Akahane
  • , H. Z. Song
  • , Y. Okada
  • , M. Kawabe
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Coherent InAsxP1-x islands were formed on the InP (100) and the InP (3 1 1)B surfaces by As/P exchange reaction under As flux and atomic H irradiation at 480°C. Islands on the InP (1 0 0) surface were found only formed at the step edges with an extremely low density. Contrary to the InP (1 0 0) surface, dense islands were formed on the InP (3 1 1)B surface. Especially, the InAsxP1-x island arrays on the InP (3 1 1)B surface exhibited a significant narrowing of the size dispersion and a surprisingly strong nearest-neighbor correlation. It is suggested that long-range elastic interaction between self-assembled islands via the anisotropically strained substrate play a crucial role in this self-organization process.

Original languageEnglish
Pages (from-to)639-644
Number of pages6
JournalJournal of Crystal Growth
Volume233
Issue number4
DOIs
StatePublished - Dec 2001
Externally publishedYes

Keywords

  • A1. atomic force microscopy
  • A1. low dimensional structures
  • B2. semiconducting III-V matrials

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