Surface Phase Transitions Induced by Electron Mediated Adatom-Adatom Interaction

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dc.creatorShi, Junren
dc.creatorWu, Biao
dc.creatorXie, X. C.
dc.creatorPlummer, E. W.
dc.creatorZhang, Zhenyu
dc.date2003-03-20
dc.date.accessioned2026-07-07T02:50:18Z
dc.date.available2026-07-07T02:50:18Z
dc.descriptionWe propose that the indirect adatom-adatom interaction mediated by the conduction electrons of a metallic surface is responsible for the $\sqrt{3}\times \sqrt{3}\Leftrightarrow 3\times 3$ structural phase transitions observed in Sn/Ge (111) and Pb/Ge (111). When the indirect interaction overwhelms the local stress field imposed by the substrate registry, the system suffers a phonon instability, resulting in a structural phase transition in the adlayer. Our theory is capable of explaining all the salient features of the $\sqrt{3}\times \sqrt{3}\Leftrightarrow 3\times 3$ transitions observed in Sn/Ge (111) and Pb/Ge (111), and is in principle applicable to a wide class of systems whose surfaces are metallic before the transition.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0303434
dc.identifierhttp://arxiv.org/abs/cond-mat/0303434
dc.identifierPhys. Rev. Lett. 91, 076103 (2003)
dc.identifierdoi:10.1103/PhysRevLett.91.076103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21062
dc.subjectMaterials Science
dc.titleSurface Phase Transitions Induced by Electron Mediated Adatom-Adatom Interaction
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