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  1. No Access

    Article

    Stability of two-dimensional nanostructures

    We investigate atomic and molecular nanostructures on metal surfaces by variable low-temperature scanning tunnelling microscopy. In combination with molecular dynamics calculations we achieve a detailed unders...

    K. Morgenstern, E. Laegsgaard, I. Stensgaard, F. Besenbacher… in Applied Physics A (1999)

  2. No Access

    Article

    Enhancement of surface self-diffusion of platinum atoms by adsorbed hydrogen

    Surface diffusion of atoms is an important phenomenon in areas of materials processing such as thin-film growth and sintering. Self-diffusion (that is, diffusion of the atoms of which the surface is comprised)...

    S. Horch, H. T. Lorensen, S. Helveg, E. Lægsgaard, I. Stensgaard, K. W. Jacobsen… in Nature (1999)

  3. No Access

    Article

    Comparative study of methods for measuring. the apparent barrier height on an atomic scale

    L. Olesen, E. Laegsgaard, I. Stensgaard, F. Besenbacher in Applied Physics A (1998)

  4. No Access

    Article

    Designing surface alloys with specific active sites

    This report describes a combined experimental and theoretical approach to the problem of designing surface alloys with specific chemical properties. Au-Ni(111) surface alloys were prepared and the distribution...

    P. M. Holmblad, J. HvolbÆk Larsen, I. Chorkendorff, L. Pleth Nielsen… in Catalysis Letters (1996)

  5. No Access

    Article

    Direct observations of changes in surface structures by scanning tunneling microscopy

    Recently, we have studied the interaction of reactive adsorbates H, C, O, and S with Ni and Cu surfaces by scanning tunneling microscopy (STM). In this paper, we briefly illustrate and discuss how such studies...

    F. Besenbacher, P. T. Sprunger, L. Ruan, L. Olesen, I. Stensgaard… in Topics in Catalysis (1994)

  6. No Access

    Article

    Scanning tunneling microscopy characterization of ammonia synthesis catalysts

    The possibility of studying the texture of catalysts at the atomic level by Scanning Tunneling Microscopy (STM) is demonstrated. It is shown that high resolution pictures can be obtained even for a passivated ...

    F. Besenbacher, E. Lægsgaard, I. Stensgaard, P. Stoltze, H. Topsøe in Catalysis Letters (1991)

  7. No Access

    Chapter and Conference Paper

    Adsorption Position of Deuterium on the Pd(100) and Ni(111) Surface Determined by Transmission Channeling

    Real space information on chemisorption positions of hydrogen isotopes on clean surfaces is straight-forwardly extracted from transmission channeling through thin crystals without any complicated and time cons...

    F. Besenbacher, I. Stensgaard, K. Mortensen in The Structure of Surfaces II (1988)

  8. No Access

    Article

    Sn In silicon carbide: A mossbauer and channeling study

    Implantation of Sn at ∼550°C into SiC and post-annealing at 1120°C has been demonstrated to lead to a predominant population of the substitutional Si sites. The electronic structure of the Sn atoms in substitu...

    J. W. Petersen, J. U. Andersen, S. Damgaard, F. O. Lu… in Hyperfine Interactions (1981)