IDEAS home Printed from https://ideas.repec.org/a/wsi/srlxxx/v04y1997i06ns0218625x9700153x.html
   My bibliography  Save this article

VALENCE-BAND PHOTOEMISSION STUDY OF(Ba,Cs)onW(110)

Author

Listed:
  • TUN-WEN PI

    (Synchrotron Radiation Research Center, Hsinchu, Taiwan, ROC)

  • LE-HONG HONG

    (Synchrotron Radiation Research Center, Hsinchu, Taiwan, ROC)

  • RONG-TZONG WU

    (Synchrotron Radiation Research Center, Hsinchu, Taiwan, ROC)

  • CHIU-PING CHENG

    (Department of Physics, National Tsing-Hua University, Hsinchu, Taiwan, ROC)

Abstract

We present the first valence-band photoemission study ofBaandCson an atomically clean W(110) surface. The cleanness of the tungsten substrate can be justified from both high surface4fcore emission and sharp surface states in the valence-band spectra. UponBa (Cs)adsorption, the work function is lowered to 2.02 (1.76) eV, corresponding to one third of a monolayer. Further, the two symmetric high-lying surface states move little in energy but quench rapidly in intensity and diminish at the work-function minimum. On the other hand, the low-lying surface state at 1.41 eV shifts about 215 meV toward higher binding energy and reduces its emission at thicker coverage. The bonding of theBadorbital with the Wd-like surface states is not found, in contrast to the theoretical calculation and angle-resolved inverse photoemission study ofBaonW(100). From the coverage-dependent interfacial electronic structure and the parallel behaviors manifest in bothBaonWandCsonW, the polarized-covalent model for the alkali-metal–substrate interactions is firmly reinforced.

Suggested Citation

  • Tun-Wen Pi & Le-Hong Hong & Rong-Tzong Wu & Chiu-Ping Cheng, 1997. "VALENCE-BAND PHOTOEMISSION STUDY OF(Ba,Cs)onW(110)," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 4(06), pages 1197-1201.
    • Handle: RePEc:wsi:srlxxx:v:04:y:1997:i:06:n:s0218625x9700153x
    DOI: 10.1142/S0218625X9700153X
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0218625X9700153X
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0218625X9700153X?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Keywords

    ; 79.60 Gs; 68.55.Gi;
    All these keywords.

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:04:y:1997:i:06:n:s0218625x9700153x. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.