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Atomic-Scale Friction on Stepped Surfaces of Ionic Crystals (2011)

Pascal Steiner, Enrico Gnecco, Franciszek Krok, Janusz Budzioch, Lukasz Walczak, Jerzy Konior, Marek Szymonski, and Ernst Meyer

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2011-05-07

Beschreibung: Author(s): Pascal Steiner, Enrico Gnecco, Franciszek Krok, Janusz Budzioch, Lukasz Walczak, Jerzy Konior, Marek Szymonski, and Ernst Meyer We report on high-resolution friction force microscopy on a stepped NaCl(001) surface in ultrahigh vacuum. The measurements were performed on single cleavage step edges. When blunt tips are used, friction is found to increase while scanning both up and down a step edge. With atomically sharp tips, f... [Phys. Rev. Lett. 106, 186104] Published Fri May 06, 2011

Schlagwort(e): Condensed Matter: Structure, etc.

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

Publiziert von American Physical Society (APS)

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Equivalence of the Boson Peak in Glasses to the Transverse Acoustic van Hove Singularity in Crystals (2011)

A. I. Chumakov, G. Monaco, A. Monaco, W. A. Crichton, A. Bosak, R. Rüffer, A. Meyer, F. Kargl, L. Comez, D. Fioretto, H. Giefers, S. Roitsch, G. Wortmann, M. H. Manghnani, A. Hushur, Q. Williams, J. Balogh, K. Parliński, P. Jochym, and P. Piekarz

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2011-06-01

Beschreibung: Author(s): A. I. Chumakov, G. Monaco, A. Monaco, W. A. Crichton, A. Bosak, R. Rüffer, A. Meyer, F. Kargl, L. Comez, D. Fioretto, H. Giefers, S. Roitsch, G. Wortmann, M. H. Manghnani, A. Hushur, Q. Williams, J. Balogh, K. Parliński, P. Jochym, and P. Piekarz We compare the atomic dynamics of the glass to that of the relevant crystal. In the spectra of inelastic scattering, the boson peak of the glass appears higher than the transverse acoustic (TA) singularity of the crystal. However, the density of states shows that they have the same number of states.... [Phys. Rev. Lett. 106, 225501] Published Tue May 31, 2011

Schlagwort(e): Condensed Matter: Structure, etc.

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

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Tuning the Growth Orientation of Epitaxial Films by Interface Chemistry (2012)

Matthias Gubo, Christina Ebensperger, Wolfgang Meyer, Lutz Hammer, Klaus Heinz, Florian Mittendorfer, and Josef Redinger

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2012-02-11

Beschreibung: Author(s): Matthias Gubo, Christina Ebensperger, Wolfgang Meyer, Lutz Hammer, Klaus Heinz, Florian Mittendorfer, and Josef Redinger The support of epitaxial films frequently determines their crystallographic orientation, which is of crucial importance for their properties. We report a novel way to alter the film orientation without changing the substrate. We show for the growth of CoO on the Ir(100) surface that, while the oxide... [Phys. Rev. Lett. 108, 066101] Published Fri Feb 10, 2012

Schlagwort(e): Condensed Matter: Structure, etc.

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Digitale ISSN: 1079-7114

Thema: Physik

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Tuning the Reactivity of a Cu/ZnO Nanocatalyst via Gas Phase Pressure (2013)

Luis Martínez-Suárez, Johannes Frenzel, Dominik Marx, and Bernd Meyer

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2013-02-21

Beschreibung: Author(s): Luis Martínez-Suárez, Johannes Frenzel, Dominik Marx, and Bernd Meyer By calculation of a thermodynamic phase diagram we provide an atomistic understanding of the morphological changes in ZnO-supported Cu nanocatalysts, which are subject to strong metal-support interactions, in response to the redox properties of the surrounding gas phase, i.e., depending on temperatu... [Phys. Rev. Lett. 110, 086108] Published Wed Feb 20, 2013

Schlagwort(e): Condensed Matter: Structure, etc.

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Thema: Physik

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Measuring Electric Field Induced Subpicometer Displacement of Step Edge Ions (2012)

Shigeki Kawai, Filippo Federici Canova, Thilo Glatzel, Teemu Hynninen, Ernst Meyer, and Adam S. Foster

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2012-10-04

Beschreibung: Author(s): Shigeki Kawai, Filippo Federici Canova, Thilo Glatzel, Teemu Hynninen, Ernst Meyer, and Adam S. Foster We provide unambiguous evidence that the applied electrostatic field displaces step atoms of ionic crystal surfaces by subpicometers in different directions via the measurement of the lateral force interactions by bimodal dynamic force microscopy combined with multiscale theoretical simulations. Suc... [Phys. Rev. Lett. 109, 146101] Published Wed Oct 03, 2012

Schlagwort(e): Condensed Matter: Structure, etc.

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Accurate Measurement of Electron Beam Induced Displacement Cross Sections for Single-Layer Graphene (2012)

Jannik C. Meyer, Franz Eder, Simon Kurasch, Viera Skakalova, Jani Kotakoski, Hye Jin Park, Siegmar Roth, Andrey Chuvilin, Sören Eyhusen, Gerd Benner, Arkady V. Krasheninnikov, and Ute Kaiser

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2012-05-08

Beschreibung: Author(s): Jannik C. Meyer, Franz Eder, Simon Kurasch, Viera Skakalova, Jani Kotakoski, Hye Jin Park, Siegmar Roth, Andrey Chuvilin, Sören Eyhusen, Gerd Benner, Arkady V. Krasheninnikov, and Ute Kaiser We present an accurate measurement and a quantitative analysis of electron-beam-induced displacements of carbon atoms in single-layer graphene. We directly measure the atomic displacement (“knock-on”) cross section by counting the lost atoms as a function of the electron-beam energy and applied dose... [Phys. Rev. Lett. 108, 196102] Published Mon May 07, 2012

Schlagwort(e): Condensed Matter: Structure, etc.

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Thema: Physik

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From Point Defects in Graphene to Two-Dimensional Amorphous Carbon (2011)

J. Kotakoski, A. V. Krasheninnikov, U. Kaiser, and J. C. Meyer

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2011-03-10

Beschreibung: Author(s): J. Kotakoski, A. V. Krasheninnikov, U. Kaiser, and J. C. Meyer While crystalline two-dimensional materials have become an experimental reality during the past few years, an amorphous 2D material has not been reported before. Here, using electron irradiation we create an sp^{2} -hybridized one-atom-thick flat carbon membrane with a random arrangement of polygons... [Phys. Rev. Lett. 106, 105505] Published Wed Mar 09, 2011

Schlagwort(e): Condensed Matter: Structure, etc.

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Silicon–Carbon Bond Inversions Driven by 60-keV Electrons in Graphene (2014)

Toma Susi, Jani Kotakoski, Demie Kepaptsoglou, Clemens Mangler, Tracy C. Lovejoy, Ondrej L. Krivanek, Recep Zan, Ursel Bangert, Paola Ayala, Jannik C. Meyer, and Quentin Ramasse

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2014-09-12

Beschreibung: Author(s): Toma Susi, Jani Kotakoski, Demie Kepaptsoglou, Clemens Mangler, Tracy C. Lovejoy, Ondrej L. Krivanek, Recep Zan, Ursel Bangert, Paola Ayala, Jannik C. Meyer, and Quentin Ramasse We demonstrate that 60-keV electron irradiation drives the diffusion of threefold-coordinated Si dopants in graphene by one lattice site at a time. First principles simulations reveal that each step is caused by an electron impact on a C atom next to the dopant. Although the atomic motion happens be... [Phys. Rev. Lett. 113, 115501] Published Thu Sep 11, 2014

Schlagwort(e): Condensed Matter: Structure, etc.

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High-Resolution Molecular Orbital Imaging Using a p-Wave STM Tip (2011)

Leo Gross, Nikolaj Moll, Fabian Mohn, Alessandro Curioni, Gerhard Meyer, Felix Hanke, and Mats Persson

American Physical Society (APS)

In: Physical Review Letters

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Publikationsdatum: 2011-08-16

Beschreibung: Author(s): Leo Gross, Nikolaj Moll, Fabian Mohn, Alessandro Curioni, Gerhard Meyer, Felix Hanke, and Mats Persson Individual pentacene and naphthalocyanine molecules adsorbed on a bilayer of NaCl grown on Cu(111) were investigated by means of scanning tunneling microscopy using CO-functionalized tips. The images of the frontier molecular orbitals show an increased lateral resolution compared with those of the b... [Phys. Rev. Lett. 107, 086101] Published Mon Aug 15, 2011

Schlagwort(e): Condensed Matter: Structure, etc.

Print ISSN: 0031-9007

Digitale ISSN: 1079-7114

Thema: Physik

Publiziert von American Physical Society (APS)

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