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Phys Rev Lett. 2011 Oct 21;107(17):176102. Epub 2011 Oct 19.

Quantum size effect driven structure modifications of Bi films on Ni(111).

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Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente, Post Office Box 217, NL-7500AE Enschede, The Netherlands.

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  • Phys Rev Lett. 2012 Dec 28;109(26):269903.


The quantum-size effect (QSE) driven growth of Bi film structures on Ni(111) was studied in situ using low energy electron microscopy and selective area low energy electron diffraction (μLEED). Domains with a (3×3), [(3)(1)(-1)(2)], and (7×7) film structure are found with a height of 3, 5, and 7 atomic layers, respectively. A comparison of I/V-μLEED curves with tensor LEED calculations shows perfectly accommodated Fermi wavelengths, indicative that not only the quantized height, but also the film structure is driven by QSE.

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