UCL  IRIS
Institutional Research Information Service
UCL Logo
Please report any queries concerning the funding data grouped in the sections named "Externally Awarded" or "Internally Disbursed" (shown on the profile page) to your Research Finance Administrator. Your can find your Research Finance Administrator at http://www.ucl.ac.uk/finance/research/post_award/post_award_contacts.php by entering your department
Please report any queries concerning the student data shown on the profile page to:

Email: portico-services@ucl.ac.uk

Help Desk: http://www.ucl.ac.uk/ras/portico/helpdesk
Publication Detail
H atom adsorption and diffusion on Si(110)-(1x1) and (2x1) surfaces
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Brazdova V, Bowler DR
  • Publisher:
    ROYAL SOC CHEMISTRY
  • Publication date:
    2011
  • Pagination:
    11367, 11372
  • Journal:
    PHYS CHEM CHEM PHYS
  • Volume:
    13
  • Issue:
    23
  • Print ISSN:
    1463-9076
  • Language:
    EN
  • Keywords:
    SCANNING-TUNNELING-MICROSCOPY, AUGMENTED-WAVE METHOD, HYDROGEN DIFFUSION, SI(001) SURFACE, APPROXIMATION, BINDING, POINTS, PATHS
  • Addresses:
    Brazdova, V
    UCL
    London Ctr Nanotechnol
    London
    WC1H 0AH
    England

    UCL
    Dept Phys & Astron
    London
    WC1E 6BT
    England
Abstract
We present a periodic density-functional study of hydrogen adsorption and diffusion on the Si(110)-(1 x 1) and (2 x 1) surfaces, and identify a local reconstruction that stabilizes the clean Si(110)-(1 x 1) by 0.51 eV. Hydrogen saturates the dangling bonds of surface Si atoms on both reconstructions and the different structures can be identified from their simulated scanning tunneling microscopy/current image tunneling spectroscopy (STM/CITS) images. Hydrogen diffusion on both reconstructions will proceed preferentially along zigzag rows, in between two adjacent rows. The mobility of the hydrogen atom is higher on the (2 x 1) reconstruction. Diffusion of a hydrogen vacancy on a monohydride Si(110) surface will proceed along one zigzag row and is slightly more difficult (0.2 eV and 0.6 eV on (1 x 1) and (2 x 1), respectively) than hydrogen atom diffusion on the clean surface.
Publication data is maintained in RPS. Visit https://rps.ucl.ac.uk
 More search options
UCL Researchers
Author
Dept of Physics & Astronomy
Author
London Centre for Nanotechnology
University College London - Gower Street - London - WC1E 6BT Tel:+44 (0)20 7679 2000

© UCL 1999–2011

Search by