Uehara Y, Ushioda S. Vibration of H atomic chains on Ni(110) measured by scanning tunneling microscope light emission spectroscopy.
PHYSICAL REVIEW LETTERS 2004;
92:066102. [PMID:
14995256 DOI:
10.1103/physrevlett.92.066102]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2003] [Indexed: 05/24/2023]
Abstract
We have measured the visible light spectrum emitted by hydrogen atoms adsorbed on an Ni(110) surface, excited by the tunneling current from the scanning tunneling microscope. The spectrum contains periodic fine structures, whose period corresponds to the vertical vibrational energy of the adsorbed H atom. This energy showed the expected isotope shift when H was replaced by deuterium, and further it depended on the H-atom chain length.
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