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Inner-shell autoionization spectra obtained with synchrotron radiation are reported for mercury clusters Hgₙ, n≤40. For the small clusters n≤12 the spectral behavior as a function of size is interpreted in terms of an excitonic model. For larger cluster sizes a gradual deviation from van der Waals bonding is observed. The asymmetry occuring in the line profiles reflects the progressive construction of the sp conduction band.
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Bréchignac et al. (1988) studied this question.
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