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Work Function of Simple Metals: Relation between Theory and Experiment

100%

Wojciechowski K., Bogdanów H.

A variational calculation of the face-dependent work function with pseudopotential corrections employed has been performed. Critical analysis of the comparison between the calculated work function values and the experimental polycrystalline data is also given. The polycrystalline work function data may be treated as the mean low-index work function values and compared with the ones calculated. The use of the simple variational method and the Ashcroft pseudopotential for the description of metallic ions leads to good agreement between theory and experiment, and also enables to explain the increasing or decreasing tendency of work function values in different series of the simple metals.

Analytical Representation of Charge-Density Profile at a Jellium Surface Covered with the Alkali Metal Submonolayers

81%

Rogowska J. M., Wojciechowski K. F., Bogdanów H.

Acta Physica Polonica A

1991

vol. 79

issue 5

707-716

A simple trial function for the electron density profiles at the surface of jellium covered by a submonolayer of alkali adatoms is proposed. The values of work function changes due to adsorption, computed by use of this function, are in good agreement with experimental data. It is shown also that the proposed earlier trial functions for the electron density profiles at the metal surface covered by metallic adlayers, give a wrong sequence of surface concentration of adatoms, at which the minimum of work function for different adsorbates occurs.

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2 Acta Physica Polonica A

1 1994

1 1991

2 Bogdanów H.

1 Rogowska J. M.

1 Wojciechowski K.

1 Wojciechowski K. F.

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Work Function of Simple Metals: Relation between Theory and Experiment

Analytical Representation of Charge-Density Profile at a Jellium Surface Covered with the Alkali Metal Submonolayers