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>Recombinative desorption of H2and D2from Cu(110) and Cu(111): Determination of nonequilibrium rovibrational distributions
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Recombinative desorption of H2and D2from Cu(110) and Cu(111): Determination of nonequilibrium rovibrational distributions
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机译：Recombinative desorption of H2and D2from Cu(110) and Cu(111): Determination of nonequilibrium rovibrational distributions
Rotational and vibrational state distributions have been determined for H2and D2recombinatively desorbing from clean Cu(110) and Cu(111) surfaces in ultrahyphen;high vacuum. A 2+1 resonancehyphen;enhanced multiphoton ionization technique is employed. Rotational distributions for both isotopes are found to be mildly nonhyphen;Boltzmann and having mean rotational energies less than the surface temperatureTsand equal for both surfaces. The (vPrime;=1)/(vPrime;=0) vibrational population ratio for both H2and D2, however, is sim;50 times greater than the value expected for an equilibrium ensemble atTsfor desorption from Cu(110) and sim;100 times greater from Cu(111).
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