Hopping of the Photohole during Photoemission from Physisorbed N2: The 
Influence of Band Formation on Vibrational Excitation

Bertolo, Michele; Hansen, W.; Jacobi, Karl

doi:/10.1103/PhysRevLett.67.1898

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Hopping of the Photohole during Photoemission from Physisorbed N₂: The Influence of Band Formation on Vibrational Excitation

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Bertolo, Michele
Fritz Haber Institute, Max Planck Society;

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Hansen, W.
Fritz Haber Institute, Max Planck Society;

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Jacobi, Karl
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Bertolo, M., Hansen, W., & Jacobi, K. (1991). Hopping of the Photohole during Photoemission from Physisorbed N₂: The Influence of Band Formation on Vibrational Excitation. Physical Review Letters, 67(14), 1898-1901. doi:/10.1103/PhysRevLett.67.1898.

Cite as: https://hdl.handle.net/21.11116/0000-000A-28E7-5

Abstract

N₂ physisorbed on top of a Xe spacer layer on Ag(111) and Pd(111) has been studied by angle-resolved and polarization-dependent UV photoemission. The N₂ 1_{π_u} valence level exhibits a vibrational fine structure due to two multiplets corresponding to the ionic (N⁺₂) and neutral (N₂) states. The neutral-state multiplet is explained through hopping of the photohole during photoemission. We show that its intensity is stronger for emission from the in-plane component of 1_{π_u}, than for the perpendicular one. This is due to a larger lateral overlap in the former case, as concluded by the observed band formation.