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In-situ observation of the polar InSb(111) reconstructed surface by ultra high vacuum reflection electron microscopy

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
222
Identifiers
DOI: 10.1016/0039-6028(89)90351-8

Abstract

Abstract Both reconstructed InSb(111)A and reconstructed InSb(111)B surfaces were observed under ultra high vacuum conditions by using reflection electron microscopy. When the InSb(111)B surface was heated at 420 °C, reflection high energy electron diffraction patterns obtained revealed the transformation of a Sb-stabilized 2 × 2 surface into a In-stabilized 3 × 1 surface, resulting in the formation of In particles. On the other hand, for the (111)A surfaces, Sb-stabilized 2 × 6 surfaces were transformed into In-stabilized 2 × 2 surfaces at a temperature of 300°C. In addition, in the case of InSb(111)A, the In particles were formed at 450 °C. The influence of the particles on the surface reconstruction of homo-epitaxially grown InSb(111)B is discussed.

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