K Tankeshwar1, G S Dubey1 and K N Pathak1
Published under licence by IOP Publishing Ltd
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Citation K Tankeshwar et al 1988 J. Phys. C: Solid State Phys. 21 L811
DOI 10.1088/0022-3719/21/22/007
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Using a simple sech(at) form of the relaxation kernel in the Mori-Zwanzig scheme, the authors calculate the dynamical structure factor S(q, omega ) of liquid aluminium. Their calculation predicts a collective excitation peak in S(q omega ) for q<or=1.2AA-1 and a plateau for 1.5<or=q<or=1.8 AA-1, in agreement with molecular dynamics data. An overall very satisfactory agreement with the MD data of Ebbsjo and co-workers (1980) has been achieved for all wavenumbers.