Open Access

Self-organization of quantum-dot pairs by high-temperature droplet epitaxy

  • Zhiming M. Wang1Email author,
  • Kyland Holmes1,
  • Yuriy I. Mazur1,
  • Kimberly A. Ramsey1 and
  • Gregory J. Salamo1
Nanoscale Research Letters20061:57

DOI: 10.1007/s11671-006-9002-z

Published: 25 July 2006

Abstract

The spontaneously formation of epitaxial GaAs quantum-dot pairs was demonstrated on an AlGaAs surface using Ga droplets as a Ga nano-source. The dot pair formation was attributed to the anisotropy of surface diffusion during high-temperature droplet epitaxy.

Keywords

Quantum dots Droplet epitaxy
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Declarations

Acknowledgments

We thank Dr. John L. Shultz for his technical assistance regarding the MBE system.

Authors’ Affiliations

(1)
Department of Physics, University of Arkansas

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© to the authors 2006