A new method of determination of the nearest-neighbor (1NN) coordination nu
mbers for binary disordered alloys is proposed. The method is reduced to th
e solution of the system of linear algebraic equations for the partial coor
dination numbers. As input data we use 1NN partial interatomic distances ob
tained independently for each EXAFS spectrum in binary alloy and the Debye-
Waller factors. Coordination numbers and interatomic distances for 75 and 8
0 at% Ni-Mn alloys in ordered and disordered states are presented. (C) 2000
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