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. 2006 Feb 10;96(5):055503.
doi: 10.1103/PhysRevLett.96.055503. Epub 2006 Feb 7.

Effect of intense laser irradiation on the lattice stability of semiconductors and metals

V Recoules  1 , J Clérouin, G Zérah, P M Anglade, S Mazevet
Affiliations

Effect of intense laser irradiation on the lattice stability of semiconductors and metals

V Recoules et al. Phys Rev Lett. .

Abstract

The effect of intense ultrashort irradiation on interatomic forces, crystal stability, and possible melting transition of the underlying lattice is not completely elucidated. By using ab initio linear response to compute the phonon spectrum of gold, silicon, and aluminum, we found that silicon and gold behave in opposite ways when increasing radiation intensity: whereas a weakening of the silicon bond induces a lattice instability, gold undergoes a sharp increase of its melting temperature, while a significantly smaller effect is observed for aluminum for electronic temperatures up to 6 eV.

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