Abstract
Thin Alkali metal (AM) films of K, Rb, and Cs were grown on Si(111)-7×7, and second-harmonic generation (SHG) was observed at several wavelengths in the near-IR region at room temperature (RT) in an ultra-high vacuum (UHV) chamber. A large SHG signal was obtained for films deposited at low temperatures. This observation qualitatively agrees with the fact that films deposited at low temperatures are rough. For coverages above the saturation monolayer, resonance enhancement was identified centered at 2.5, 2.4 and <2.2eV for K, Rb and Cs adsorption, respectively; these observations are in rough agreement with the reported resonance energies of surface plasmons.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
