Experimental observation of the fermi surface–Brillouin zone interaction in pure zinc by means of X‐ray photoelectron spectroscopy

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Abstract
The 4s–4p valence band of pure zinc is studied by means of X‐ray photoelectron spectroscopy. A fine structure is revealed near the Fermi edge and interpreted in terms of the van Hove singularity due to the Fermi surface–Brillouin zone interaction. The observed peak is attributed to the Fermi surface contacts with the {10.1} zone planes, combined with the electron overlaps across the {10.0} zone planes. This supports the model proposed in the interpretation of the trends of the electronic specific heat coefficients in the h.c.p. Hume‐Rothery alloy phases.