Selective field evaporation in field-ion microscopy for ordered alloys

Semiempirical pair potentials, obtained by applying the Chen-inversion technique to a cohesion equation of Rose et al. [Phys. Rev. B 29, 2963 (1984)], are employed to assess the bonding energies of surface atoms of intermetallic compounds. This provides a new calculational model of selective field e...

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Bibliographic Details
Published in:Journal of applied physics 1999-04, Vol.85 (7), p.3488-3493
Main Authors: Ge, Xi-jin, Chen, Nan-xian, Zhang, Wen-qing, Zhu, Feng-wu
Format: Article
Language:English
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Summary:Semiempirical pair potentials, obtained by applying the Chen-inversion technique to a cohesion equation of Rose et al. [Phys. Rev. B 29, 2963 (1984)], are employed to assess the bonding energies of surface atoms of intermetallic compounds. This provides a new calculational model of selective field evaporation in field-ion microscopy (FIM). Based on this model, a successful interpretation of FIM image contrasts for Fe3Al, PtCo, Pt3Co, Ni4Mo, Ni3Al, and Ni3Fe is given.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.369706