Photoemission from Rare-Gas Solids: Electron Energy Distributions from the Valence Bands

Photoelectron energy distributions for solid Ne, Ar, Kr, and Xe have been measured for $8 \mathrm{eV}<~\ensuremath{\hbar}\ensuremath{\omega}<~30 \mathrm{eV}$ by use of synchrotron radiation. From these we obtained the total width and structure of the valence bands. Our data demonstrate that almost all available band-structure calculations fail to predict quantitatively features other than the spin-orbit splitting. Photoelectron energy distributions for Xe in Ar and Xe in Ne support this viewpoint.

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