PMID: 11909413Mar 23, 2002Paper

Zero-point vibration of hydrogen adsorbed on Si and Pt surfaces

Physical Review Letters
K FukutaniM Matsumoto

Abstract

Hydrogen atoms adsorbed on Si(111) and Pt(111) were investigated by nuclear reaction analysis (NRA) using 1H(15N,alphagamma)12C. From measurements of the NRA spectrum at normal and tilted ion incidences the zero-point vibrational energies of H on Si(111) in the perpendicular and parallel directions were found to be 123.4+/-4.6 and 44.6+/-6.2 meV, respectively, which are consistent with harmonic potentials. The zero-point energies obtained for Pt(111)-H were 80.8+/-3.9 and 62.1+/-6.0 meV for perpendicular and parallel directions, respectively. These results indicate that the stretching mode is harmonic, while the bending mode is strongly anharmonic.

References

Nov 15, 1986·Physical Review. B, Condensed Matter·C M Mate, G A Somorjai
Dec 15, 1987·Physical Review. B, Condensed Matter·L J Richter, W Ho
May 15, 1988·Physical Review. B, Condensed Matter·E Kaxiras, J D Joannopoulos
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Oct 21, 1991·Physical Review Letters·P Guyot-Sionnest

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Citations

Mar 5, 2014·The Journal of Chemical Physics·Kotaro TakeyasuKatsuyuki Fukutani
Jul 8, 2015·Physical Chemistry Chemical Physics : PCCP·Y Kunisada, H Kasai
Aug 27, 2016·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·K FukutaniS Ogura
Aug 7, 2019·Physical Review Letters·Max WolffBoris P Toperverg
Dec 6, 2012·Chemical Communications : Chem Comm·Christopher JensenEmil Roduner

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