Intra-atomic charge re-organization at the Pb-Si interface: Bonding mechanism at low coverage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F09%3A00207075" target="_blank" >RIV/00216208:11320/09:00207075 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Intra-atomic charge re-organization at the Pb-Si interface: Bonding mechanism at low coverage

Original language description

Lead submonolayers on the Si(111) surface in ordered structures of symmetry (root3xroot3)R30° were studied with photoelectron diffraction and ab initio calculations. At 1/3 monolayer coverage Pb atoms flip between up and down positions. This fluctuatinggeometry is connected with the charge redistribution in the basic triangular bipyramid formed by an adsorbed Pb atom and its four closest Si neighbors. The dynamic balance is reflected in the switching of bipyramids from semiconductor to metal characteras a result of the interaction between an unsaturated Pb atom in the T4 position and a saturated Si atom beneath. Substitution of a Pb atom in the 1/3 monolayer coverage with a Si atom results in stabilisation of the neighboring Pb atoms in the up position which is characteristic for Pb atoms in the 1/6 monolayer mosaic phase.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Surface Science

ISSN

0039-6028

e-ISSN

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Volume of the periodical

603

Issue of the periodical within the volume

18

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

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UT code for WoS article

000270640700006

EID of the result in the Scopus database

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