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Showing papers by "Harald Brune published in 1990"

Journal Article•DOI•
Scanning tunneling microscopy observations on the reconstructed Au(111) surface: Atomic structure, long-range superstructure, rotational domains, and surface defects

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Johannes V. Barth1, Harald Brune1, Gerhard Ertl1, Rolf Jürgen Behm2•
Fritz Haber Institute of the Max Planck Society1, Ludwig Maximilian University of Munich2
15 Nov 1990-Physical Review B
TL;DR: Spectroscopy and spin-Polarized STM Reference LNS-ARTICLE-1990-002 provide new insights into the determinants of spin- polarization in the Higgs boson.
Abstract: Keywords: Surface Electronic and Atomic Structure ; Spectroscopy ; Spin-Polarized STM Reference LNS-ARTICLE-1990-002doi:10.1103/PhysRevB.42.9307 Record created on 2009-04-14, modified on 2017-05-12

1,123 citations

Journal Article•DOI•
Direct imaging of adsorption sites and local electronic bond effects on a metal surface: C/Al(111)

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Harald Brune1, Joost Wintterlin1, Gerhard Ertl1, Rolf Jürgen Behm2•
Fritz Haber Institute of the Max Planck Society1, Ludwig Maximilian University of Munich2
15 Sep 1990-EPL
TL;DR: In this paper, an Al(111) surface in h.c.p-type threefold hollow sites is shown to exhibit local variations of their electronic structure induced by the chemical bond to the adsorbate, which lead to a decrease of the tunnel current at nearest neighbours and an increase at next-nearest neighbours.
Abstract: C atoms are adsorbed on an Al(111) surface in h.c.p.-type threefold hollow sites and significantly modify the charge density distribution in the surrounding Al atoms, as becomes evident from scanning tunnelling microscopy (STM) images resolving individual atoms of both the substrate and the adsorbate. Apparent modifications of the vertical positions of the Al atoms surrounding an adsorbate are not due to structural changes, but rather reflect local variations of their electronic structure induced by the chemical bond to the adsorbate, which lead to a decrease of the tunnel current at nearest neighbours and an increase at next-nearest neighbours, respectively.

42 citations