Symmetry breaking and restoring under high pressure: the amazing behaviour of the "simple" alkali metals

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We argue that an ionic lattice surrounded by a Fermi liquid changes phase several times under pressure, oscillating between the symmetric phase and a low-symmetry dimerized structure, as a consequence of Friedel oscillations in the pair potential. Phase oscillations explain the tendency towards dimerization which has been recently reported for the light alkali metals under high pressure. Moreover, a restoring of the symmetric phase is predicted for such elements at an even higher density.
accepted in Eur. Phys. J. B

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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/19530

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0207066
 http://arxiv.org/abs/cond-mat/0207066
 Eur. Phys. J. B 32 (2003) 323
 doi:10.1140/epjb/e2003-00105-8

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