Adsorbate-induced Surface Stiffening: Surface Lattice Dynamics of Ru(001)-(1x1)-O

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dc.creatorMoritz, T.
dc.creatorWiddra, W.
dc.creatorMenzel, D.
dc.creatorBohnen, K. -P.
dc.creatorHeid, R.
dc.date2002-11-29
dc.date.accessioned2026-07-07T02:48:29Z
dc.date.available2026-07-07T02:48:29Z
dc.descriptionThe dynamical properties of the high-density Ru(001)-(1$\times$1)-O phase has been investigated by a combined high-resolution electron energy loss spectroscopy and density functional theory study. Due to a strong static outward relaxation of the first Ru layer a soft Rayleigh phonon mode is expected. However, a Rayleigh mode stiffening together with a new high energy in-plane phonon mode above the bulk bands is found which is related to a strong adsorbate-induced intralayer force constant stiffening which counteracts an interlayer softening. This structurally rather simple system with one surface atom per (1$\times$1) unit cell demonstrates the limited applicability of previously adopted models.
dc.description3 figures; submitted to Phys.Rev
dc.identifierhttps://arxiv.org/abs/cond-mat/0211704
dc.identifierhttp://arxiv.org/abs/cond-mat/0211704
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20422
dc.subjectMaterials Science
dc.titleAdsorbate-induced Surface Stiffening: Surface Lattice Dynamics of Ru(001)-(1x1)-O
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