Modification of the Cu(110) Shockley surface state by an adsorbed pentacene monolayer

Scheybal, A. and Müller, K. and Bertschinger, R. and Wahl, M. and Bendounan, A. and Aebi, P. and Jung, T. A.. (2009) Modification of the Cu(110) Shockley surface state by an adsorbed pentacene monolayer. Physical review B: Condensed matter and materials physics, 79. p. 115406.

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The modification of the Cu(110) Shockley-type surface state by an adsorbed pentacene layer was determined using high-resolution angle-resolved photoelectron spectroscopy. It was found that the surface state is shifted by 80-120 meV to higher binding energies, depending on the pentacene coverage. In addition, an increase in the surface-state population is measured for the sample adsorbed with one monolayer of pentacene. The modification of the surface state by the adsorption of pentacene is put into relation to a complex interplay of different phenomena such as the hybridization and mixing of electronic states, the polarization of the adsorbate in the surface dipole, and the Pauli repulsion. Thus, this observation of a molecular adlayer shifting a surface state away from the Fermi energy sheds more light on the adsorbate-adsorbent interactions.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik
UniBasel Contributors:Jung, Thomas A.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:24 May 2023 09:01
Deposited On:24 May 2023 09:01

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