Enhanced electron-phonon coupling at the Mo and W(110) surfaces induced by adsorbed hydrogen

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The possible occurrence of either a charge-density-wave or a Kohn anomaly is governed by the presence of Fermi-surface nesting and the subtle interaction of electrons and phonons. Recent experimental and theoretical investigations suggest such an effect for the hydrogen covered Mo and W(110) surfaces. Using density-functional theory we examine the electronic structure and the electron-phonon coupling of these systems. Besides good agreement with the experimental phonon frequencies our study provides a characterization and quantitative analysis of an unusual scenario determining the electronic, vibrational, and structural properties of these surfaces.
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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/153166

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/mtrl-th/9510004
 http://arxiv.org/abs/mtrl-th/9510004

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arXiv