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Magic clusters and local structure formed in a half-unit cell of the Si(1 1 1)- surface by Tl adsorption

✍ Scribed by P. Kocán; A.V. Visikovskiy; Y. Ohira; M. Yoshimura; K. Ueda; H. Tochihara

Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 462 KB
Volume: 254
Category: Article
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2008.01.141

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✦ Synopsis

Formation of a ð2 Â 1Þ local structure is found at submonolayer growth of Tl on the Si(1 1 1)-ð7 Â 7Þ surface by means of scanning tunneling microscopy (STM). At low coverages, the ð7 Â 7Þ grid remains and the ð2 Â 1Þ structure is formed inside of the half-unit cells of the ð7 Â 7Þ. The ð2 Â 1Þ coexists with other structures, such as of ''magic'' clusters observed in the case of all other group III metals. Based on our STM observations we propose an atomic arrangement of the ð2 Â 1Þ structure.

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Magic clusters and local structure formed in a half-unit cell of the Si(1&#xa0;1&#xa0;1)- surface by Tl adsorption

✦ Synopsis

Magic clusters and local structure formed in a half-unit cell of the Si(1 1 1)- surface by Tl adsorption