Intrinsic and Adsorbate-Modified Vibrations of the Copper (110) Surface

A. P. Baddorf; J. M. Mundenar; E. W. Plummer

doi:10.1016/S0167-2991(09)61206-4

Intrinsic and Adsorbate-Modified Vibrations of the Copper (110) Surface

A. P. Baddorf, J. M. Mundenar, E. W. Plummer

Research output: Contribution to journal › Article › peer-review

Abstract

This chapter discusses the intrinsic and adsorbate-modified vibrations of the copper(110) surface. High resolution electron energy loss spectroscopy (HREELS) has been used to study a surface phonon of a clean and adsorbate covered Cu(110) surface. The chapter studies the changes in energy, intensity, and width of the surface phonon on Cu(110) as a function of the order and concentration of adsorbed CO, O₂, H₂, COS and H₂S to probe the nature of this type of phonon. The intrinsic properties of the phonon and bonding information that is implied from the phonon behavior upon adsorption are discussed. Surface phonon measurements reveal force constants of surface bonds that determine the surface Debye temperature and govern the kinetics of processes at interfaces. Reconstruction of a clean surface can occur when surface phonon energies differ from bulk phonon energies. Adsorbates can induce surface phonon softening that will drive reconstruction. Binding sites of adsorbates can be determined by the symmetry of surface phonons.

Original language	English
Pages (from-to)	219-228
Number of pages	10
Journal	Studies in Surface Science and Catalysis
Volume	26
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(09)61206-4
State	Published - 1986
Externally published	Yes

Funding

The authors would like to thank D.M. Zehner, and L.G. Sneddon for helpful discussions. We also the support of NSF under grant number DMR 81-09261.

Funders	Funder number
National Science Foundation	DMR 81-09261

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10.1016/S0167-2991(09)61206-4

Cite this

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abstract = "This chapter discusses the intrinsic and adsorbate-modified vibrations of the copper(110) surface. High resolution electron energy loss spectroscopy (HREELS) has been used to study a surface phonon of a clean and adsorbate covered Cu(110) surface. The chapter studies the changes in energy, intensity, and width of the surface phonon on Cu(110) as a function of the order and concentration of adsorbed CO, O2, H2, COS and H2S to probe the nature of this type of phonon. The intrinsic properties of the phonon and bonding information that is implied from the phonon behavior upon adsorption are discussed. Surface phonon measurements reveal force constants of surface bonds that determine the surface Debye temperature and govern the kinetics of processes at interfaces. Reconstruction of a clean surface can occur when surface phonon energies differ from bulk phonon energies. Adsorbates can induce surface phonon softening that will drive reconstruction. Binding sites of adsorbates can be determined by the symmetry of surface phonons.",

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AU - Mundenar, J. M.

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N2 - This chapter discusses the intrinsic and adsorbate-modified vibrations of the copper(110) surface. High resolution electron energy loss spectroscopy (HREELS) has been used to study a surface phonon of a clean and adsorbate covered Cu(110) surface. The chapter studies the changes in energy, intensity, and width of the surface phonon on Cu(110) as a function of the order and concentration of adsorbed CO, O2, H2, COS and H2S to probe the nature of this type of phonon. The intrinsic properties of the phonon and bonding information that is implied from the phonon behavior upon adsorption are discussed. Surface phonon measurements reveal force constants of surface bonds that determine the surface Debye temperature and govern the kinetics of processes at interfaces. Reconstruction of a clean surface can occur when surface phonon energies differ from bulk phonon energies. Adsorbates can induce surface phonon softening that will drive reconstruction. Binding sites of adsorbates can be determined by the symmetry of surface phonons.

AB - This chapter discusses the intrinsic and adsorbate-modified vibrations of the copper(110) surface. High resolution electron energy loss spectroscopy (HREELS) has been used to study a surface phonon of a clean and adsorbate covered Cu(110) surface. The chapter studies the changes in energy, intensity, and width of the surface phonon on Cu(110) as a function of the order and concentration of adsorbed CO, O2, H2, COS and H2S to probe the nature of this type of phonon. The intrinsic properties of the phonon and bonding information that is implied from the phonon behavior upon adsorption are discussed. Surface phonon measurements reveal force constants of surface bonds that determine the surface Debye temperature and govern the kinetics of processes at interfaces. Reconstruction of a clean surface can occur when surface phonon energies differ from bulk phonon energies. Adsorbates can induce surface phonon softening that will drive reconstruction. Binding sites of adsorbates can be determined by the symmetry of surface phonons.

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Intrinsic and Adsorbate-Modified Vibrations of the Copper (110) Surface

Abstract

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