期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 15, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.156104
关键词
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资金
- Swedish Science Council
We show by electron energy-loss measurements that desorption of physisorbed H-2 and D-2 induced by low-energy electrons takes place with large cross sections, predominantly via resonance excitation of the molecule-surface vibrational mode. The observed H-2, D-2 cross-section ratio supports a picture where rotation-translation conversion of the resonance excited j=0 -> 2 rotational transition contributes to the desorption of H-2, while this channel is energetically closed for D-2.
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