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Short‐Range Order Modelling and Bonding in Metal–a‐Ge Systems
Author(s) -
Manaila R.,
Devenyi A.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221020103
Subject(s) - tetrahedron , materials science , metal , metallic bonding , bending , amorphous solid , crystallography , bond order , range (aeronautics) , bond length , molecular physics , chemistry , metallurgy , composite material , crystal structure
A structural model is proposed for the metal‐amorphous Ge systems, based on the filling of the inner voids by the metal in a tetrahedral CRN. This starting model is relaxed under a set of bond‐stretching, bond‐bending, and Me‐Ge interaction potentials, for the specific case of the Cu x (a‐Ge) 1− x alloys ( x = 0.22 and 0.40). A good agreement between the calculated and an experimental interference function is obtained by assuming an alteration of the bonding character in the a‐Ge matrix towards a more metallic one.