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Journal Article

Observation of electronic energy bands in argon clusters


Förstel,  Marko
Max Planck Society;

Mucke,  Melanie
Max Planck Society;

Arion,  Tiberiu
Max Planck Society;

Barth,  Silko
Max Planck Society;

Ulrich,  Volker
Max Planck Society;


Bradshaw,  Alex M.
Theory, Fritz Haber Institute, Max Planck Society;

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Förstel, M., Mucke, M., Arion, T., Lischke, T., Barth, S., Ulrich, V., et al. (2010). Observation of electronic energy bands in argon clusters. Physical Review B, 82, 125450-1-125450-6. doi:10.1103/PhysRevB.82.125450.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-F778-4
The 3p valence region of argon clusters has been investigated with photoemission near the photoionization
threshold. A strong feature between 14.6 and 15.3 eV binding energy shows a photon-energy dependence
indicative of electronic-energy band dispersion. A similar feature at approximately the same binding energy
and with a similar dispersion occurs in photoemission spectra of both the ordered and disordered solids. The
effect is already fully developed for scaling-law mean cluster sizes 〈N〉 of approximately 200 atoms, thus
showing an early onset of bulklike electronic properties.