Atomic structure of a monolayer of NaCl on Ag (110) surface

POSTER

Abstract

Here we report on the adsorption of an NaCl film on Ag (110) under ultra-high vacuum conditions. At room temperature, Low Energy Electron Diffraction and Scanning Tunneling Microscopy show that the NaCl film forms a (4x1) superstructure. At RT, the film consists of small-sized islands that coalesce into larger islands at 410 K. These large islands preserve the (4x1) superstructure and cover the entire surface. A computational study using density functional theory calculations, with and without the inclusion of van der Waals effects confirm the co-existence of two domains in agreement with the observed structure. We report on the calculated change in the work-function and charge transfer for the tow adsorption configurations as well as the geometrical details including adsorption height and corrugation.

*This work was supported by a DOE grant # DE-FG02-11ER16243. Computational resources were provided by NERSC.

Presenters

  • karima lasri

    • physics department, Univ of Central Florida
    • Physics department, Univ of Central Florida

Authors

  • khalid Quertite

    • Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud,

  • karima lasri

    • physics department, Univ of Central Florida
    • Physics department, Univ of Central Florida

  • Hanna Enriquez

    • Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud,

  • Andrew J. Mayne

    • Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud,

  • Azzedine Bendounan

    • Synchrotron Soleil

  • Gérald Dujardin

    • Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud,

  • Nicolas Trcera

    • Synchrotron Soleil

  • Abdallah El kenz

    • LMPHE, Faculté des Sciences, Université Mohammed V

  • Abdelilah Benyoussef

    • LMPHE, Faculté des Sciences, Université Mohammed V

  • Abdelkader Kara

    • physics department, Univ of Central Florida
    • Physics, Univ of Central Florida
    • Physics department, Univ of Central Florida

  • Hamid Oughaddou

    • Institut des Sciences Moléculaires d’Orsay, Université Paris-Sud,