Growth and alloying of thin film Te on Cu(111)

King, M.O., McLeod, I.M., Hesp, D., Dhanak, V.R., MacLaren, D.A. and Kadodwala, M. (2012) Growth and alloying of thin film Te on Cu(111). Surface Science, 606(17-18), pp. 1353-1359. (doi: 10.1016/j.susc.2012.04.016)

Abstract

We explore the growth and temperature-dependent alloying of Te on Cu(111) using a combination of low energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS) and scanning tunnelling microscopy (STM). Below 275 K, growth is rough and disordered. Above 275 K, there are two distinct surface phases: a surface substitutional alloy for coverages below 0.33 ML and a Cu₃Te₂-like alloy above 0.66 ML, with the phases coexisting at intermediate coverages. The alloy is consistent with the (111)-termination of an unusual phase with F43m-symmetry that is well lattice-matched to the underlying Cu(111). It is relaxed and incommensurate, showing a long-range periodicity consistent with a floating overlayer.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Kadodwala, Professor Malcolm and MacLaren, Dr Donald and King, Mr Martin
• Authors: King, M.O., McLeod, I.M., Hesp, D., Dhanak, V.R., MacLaren, D.A., and Kadodwala, M.
• College/School: College of Science and Engineering > School of Chemistry; College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Surface Science
• ISSN: 0039-6028
• ISSN (Online): 1879-2758
• Published Online: 21 April 2012