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Publications [#60221] of Peter K. Haff

Papers Published

  1. Watson, C. C. and Haff, P. K., SPUTTER-INDUCED ISOTOPIC FRACTIONATION AT SOLID SURFACES., Journal of Applied Physics, vol. 51 no. 1 (1980), pp. 691 - 699 [1.327327]
    (last updated on 2007/04/10)

    Abstract:
    Elemental and isotopic mass fractionation in both binary and multicomponent media are studied within the framework of the familiar collision-cascade model for sputtering. Some of the most salient features of the phenomenon are explicable on this basis. It is shown that the partitioning of beam-deposited energy among the various target components can account for differentiations in the secondary recoil fluxes only on the order of one part per thousand, indicating the importance of the surface potentials when large enrichment effects occur. A mechanism governing the translation of internal recoil fluxes into external sputtered fluxes is proposed in order to account for isotopic fractionation.

    Keywords:
    SPUTTERING;