Scattering of vibrationally excited H2 from Cu(111)

✍ Scribed by A. Hodgson; J. Moryl; H. Zhao

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 665 KB
• Volume: 182
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(91)80120-m

✦ Synopsis

The interaction of hydrogen with a Cu( 1 I1 ) surface has been studied using a vibrationally ho1 molecular beam with state selected detection of the incident and scattered molecules by resonance-enhanced multiphoton iomsation. The ratio of the survival probability for HZ (v= I, J= 1) in thespecular beam to that for (Y=O,J= I ) is0.67fO. I for an incident translationalenergy of 0.34 eV at 45 D incidence. This is consistent with effkient dissociative chemisorption ofthe H, (u= 1) level, dissociation of the (~0) level being negligible at this energy.