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APS » Journals » Phys. Rev. Lett. » Volume 85 » Issue 25
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Phys. Rev. Lett. 85, 5380–5383 (2000)

Creation of “Quantum Platelets” via Strain-Controlled Self-Organization at Steps

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Adam Li, Feng Liu*, D. Y. Petrovykh, J.-L. Lin, J. Viernow, F. J. Himpsel, and M. G. Lagally
University of Wisconsin, Madison, Wisconsin 53706

Received 23 August 2000; published in the issue dated 18 December 2000

We demonstrate, by both theory and experiment, the strain-induced self-organized formation of “quantum platelets,” monolayer-thick islands of finite dimensions. They form at the early stage of heteroepitaxial growth on a substrate with regularly spaced steps, and align along the steps. In the direction perpendicular to substrate steps, the island position and spacing can be preselected through substrate miscut. Along the steps, the island size and density are controlled by self-organized growth.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.5380
DOI:
10.1103/PhysRevLett.85.5380
PACS:
81.15.Kk, 68.35.Md

*Present address: University of Utah, Salt Lake City, UT 84112.

 
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