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Formation and Evolution of InAs Nanowires on an InP(001) Surface

  • Haeyeon Yang (a1), J. B. Smathers (a1), P. Ballet (a1), C. L. Workman (a1) and G. J. Salamo (a1)...

Abstract

We have used in-situ scanning tunneling microscopy (STM) to study the formation and evolution of InAs islands on an InP (001) surface. The InAs islands are produced by (i) exchange of P-atoms with As-atoms or by (ii) direct deposition of In and As. In both cases InAs nanowires arem elongated along the [ī 10] direction with a length over 1 µm. We observe these nanowires to be stable under an arsenic environment while unstable with no arsenic flux, and eventually transform into a rectangular-based pyramid with a truncated top. These observations indicate that surface reconstruction can play a role in the selection of quantum wire or dot growth.

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Formation and Evolution of InAs Nanowires on an InP(001) Surface

  • Haeyeon Yang (a1), J. B. Smathers (a1), P. Ballet (a1), C. L. Workman (a1) and G. J. Salamo (a1)...

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