title: Excitation of molecular vibrational modes with inelastic scanning tunneling microscopy processes: examination through action spectra of cis-2-butene on Pd(110).
abstract: Inelastically tunneled electrons from a scanning tunneling microscope (STM) were used to induce vibrationally mediated motion of a single cis-2-butene molecule among four equivalent orientations on Pd(110) at 4.8 K. The action spectrum obtained from the motion clearly detects more vibrational modes than inelastic electron tunneling spectroscopy with a STM. We demonstrate the usefulness of the action spectroscopy as a novel single molecule vibrational spectroscopic method. We also discuss its selection rules in terms of resonance tunneling.
authors.affiliation: RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Sainoo
authors.forename: Yousoo
authors.initials: Y
authors.lastname: Kim
authors.forename: Toshiro
authors.initials: T
authors.lastname: Okawa
authors.forename: Tadahiro
authors.initials: T
authors.lastname: Komeda
authors.forename: Hidemi
authors.initials: H
authors.lastname: Shigekawa
authors.forename: Maki
authors.initials: M
authors.lastname: Kawai