Are light alkali metals still metals under high pressure?

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dc.creatorSiringo, Fabio
dc.creatorPucci, Renato
dc.creatorAngilella, Giuseppe G. N.
dc.date1995-11-29
dc.date.accessioned2026-07-07T03:08:03Z
dc.date.available2026-07-07T03:08:03Z
dc.descriptionThe extended Hubbard Hamiltonian on a bcc lattice is studied at half-filling and for a finite hopping between next-nearest-neighbours, in mean-field approximation. An ionic insulating broken-symmetry phase is predicted for any hydrogenoid bcc solid in the density range 1.0 < r sub s < 2.6. The occurrence of an ionic phase would explain the failure to achieve hydrogen metallization at high pressures. Moreover, a metal-insulator transition is expected for sodium in the 100 GPa region.
dc.description12 REVTeX pages + 1 PostScript figures in 1 uuencoded+ compressed+tarred format; subm. to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/9512011
dc.identifierhttp://arxiv.org/abs/cond-mat/9512011
dc.identifierHigh Pressure Research, 15 (1997) 255
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27407
dc.subjectCondensed Matter
dc.titleAre light alkali metals still metals under high pressure?
dc.typetext

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