What question did this study set out to answer?

Determine the rotationally state-resolved steric orientation of D2 molecules associatively desorbing from a Cu(111) surface to probe gas-surface interaction dynamics.

October 1, 1996EPL (Europhysics Letters)

Rotational corrugation in associative desorption of D ₂ from Cu(111)

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Determine the rotationally state-resolved steric orientation of D2 molecules associatively desorbing from a Cu(111) surface to probe gas-surface interaction dynamics.
Measured the desorbing flux of D2 from a Cu(111) surface using laser-induced fluorescence.
Employed linearly polarized, tunable vacuum ultraviolet radiation across the B 1Σu+ (v', J', M') ← X 1Σg+ (v'', J'', M'') electronic transition for rotational states J'' = 1 to 8 in the vibrational ground state.
Observed a quadrupole alignment factor, A(2)0, compatible with a spatially isotropic distribution across all measured rotational states (J'' = 1–8) in the vibrational ground state.
Attributed the isotropic rotational distribution to strong azimuthal, polar, and lateral corrugation within the dissociative interaction potential.

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Implication

Spectroscopic investigation reveals spatially isotropic rotational alignment in D2 desorbing from Cu(111), indicating strong multidimensional corrugation of the dissociative interaction potential.

Cite This Study

Wetzig et al. (1996) studied this question.

synapsesocial.com/papers/6a720b4026a7f98052de1b0b https://doi.org/10.1209/epl/i1996-00183-2

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Implication

Spectroscopic investigation reveals spatially isotropic rotational alignment in D2 desorbing from Cu(111), indicating strong multidimensional corrugation of the dissociative interaction potential.

Rotational corrugation in associative desorption of D ₂ from Cu(111)

Key Points

Discussion

Implication

Cite This Study

Rotational corrugation in associative desorption of D ₂ from Cu(111)

Key Points

Discussion

Implication

Cite This Study

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