An analysis of the short and intermediate range order in several organic glass-formin

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We report elastic neutron scattering experiments on several molecular
glass-forming liquids (toluene, m-toluidine, m-fluoroaniline) as well
as a polymer (polybutadiene, M = 8000). The pressure dependence of the
static structure factor is analyzed inthe region of wave vectors
associated with short and intermediate range order ORO). In all cases,
the short range order (SRO) varies essentially with density. For
m-fluoroaniline land m-toluidine not presented here), a prepeak appears
at low wave vectors corresponding to some 'IRO' which is strongly
temperature dependent. (C) 1998 Elsevier Science B.V. All rights
reserved.

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