Adsorbate-substrate resonant interactions observed for CO on Cu(100) in the far infrared

Journal Article · Mon Jul 23 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.65.480· OSTI ID:6455485

Hirschmugl, C J; Williams, G P ^[1]; Hoffmann, F M ^[2]; Chabal, Y J ^[3]

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1. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY (USA)
2. Exxon Research and Engineering, Annandale, NJ (USA) Corporate Research Laboratories, Annandale, NJ (USA)
3. AT T Bell Laboratories, Murray Hill, NJ (USA)

Surface infrared reflection-absorption measurements for CO adsorbed on Cu(100) in the frequency range 200--500 cm{sup {minus}1} reveal, in addition to the Cu-CO stretch mode at 345 cm{sup {minus}1}, a sharp derivativelike feature at 285 cm{sup {minus}1}, assigned to the CO frustrated rotation mode which is usually dipole forbidden. Its infrared activity and Fano line shape arise from coupling to substrate electronic transitions associated with CO-induced surface states.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6455485
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:4; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
360603* -- Materials-- Properties
ABSORPTION SPECTRA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL BONDS
COPPER
DATA
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FANO FACTOR
FAR INFRARED RADIATION
FILMS
INFORMATION
INFRARED RADIATION
METALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
REFLECTION
RESOLUTION
RESONANCE
ROTATIONAL STATES
SPECTRA
THIN FILMS
TRANSITION ELEMENTS
VIBRATIONAL STATES