Adsorption sites and surface vibrations of the Cu(110)-(2{times}3)-N surface

Journal Article · Sat Nov 30 23:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.16444· OSTI ID:404022

Hannon, J B; Duerr, H A ^[1]; Plummer, E W ^[2]

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1. Department of Physics, University of Pennsylvania, Philadephia, Pennsylvania 19104-6396 (United States)
2. Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States)

High-resolution electron energy-loss spectroscopy has been used to determine the bonding geometry of N at the Cu(110)-(2{times}3)-N surface. Symmetry arguments coupled with lattice-dynamical calculations identify 11 of the 20 observed vibrational features as arising from N bound in the three inequivalent hollow sites of the surface. Seven of the high-energy, nondipole losses observed are attributed to N or N{sub 2} species in subsurface sites. Total-energy calculations suggest that subsurface N stabilizes the large rumpling of the Cu surface layer, which characterizes recently proposed structural models. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 404022
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 23 Vol. 54; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ADSORPTION
CHEMICAL BONDS
COPPER
ELECTRON SPECTROSCOPY
NITROGEN
SURFACE PROPERTIES
VIBRATIONAL STATES