Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/579
Title: Ab initio calculations on the anomalous thermal behaviour of fcc(110) surfaces
Authors: Narasimhan, Shobhana
Keywords: density functional calculations
surface relaxation
phonons
silver
copper
aluminum
low index single crystal surfaces
Issue Date: 22-Sep-2001
Publisher: Elsevier Science BV
Citation: Applied Surface Science 182(3-4), 293-296 (2001)
Abstract: The interrelationship between surface structure and vibrations is explored for the case of unreconstructed (1 1 0) surfaces of face-centered-cubic (fcc) metals, which show anomalous thermal behavior in the anisotropies of surface vibrations and the change with temperature of interlayer spacings. I present the results of ab initio density functional theory calculations on Ag(1 1 0), Cu(1 1 0) and Al(1 1 0) to investigate this. These anomalous properties are shown to result from a huge enhancement in the coupling between the first and third layers of atoms. Though this may appear to be a counter-intuitive result, it can be justified using simple geometric arguments. (C) 2001 Elsevier Science B.V. All rights reserved.
Description: Restricted Access
URI: http://hdl.handle.net/10572/579
Other Identifiers: 0169-4332
Appears in Collections:Research Articles (Shobhana Narasimhan)

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