title: Small isotope effect of diffusion in disordered structures.
abstract: The isotope effect E of a single jump vacancy diffusion mechanism in statically disordered lattices is investigated by Monte Carlo simulation. It is found that E decreases significantly with increasing disorder. This effect is attributed to percolation processes and ensuing reduction of the effective dimension of space for the diffusing particle.
authors.affiliation: NSC Kharkov Institute of Physics and Technology, Akademichna 1, 61108 Kharkov, Ukraine. n.lazarev@kipt.kharkov.ua
authors.forename: N P
authors.initials: NP
authors.lastname: Lazarev
authors.forename: A S
authors.initials: AS
authors.lastname: Bakai
authors.forename: C
authors.initials: C
authors.lastname: Abromeit
authors.forename: V
authors.initials: V
authors.lastname: Naundorf