title: Spectral properties of small dusty clusters.
abstract: A monolayer dusty crystal can be observed in the glow discharge. In particular, a small number of dusty grains form simple atom-like plane clusters. Stability and oscillations of the polygonal cluster are considered. For the simplest stable clusters normal displacements and frequencies are found for an arbitrary form of mutual interaction. The measurement of these modes can help to give in detail the form of the potential function.
authors.affiliation: General Physics Institute, Moscow 119 991, Russia.
authors.forename: S G
authors.initials: SG
authors.lastname: Amiranashvili
authors.forename: N G
authors.initials: NG
authors.lastname: Gusein-zade
authors.forename: V N
authors.initials: VN
authors.lastname: Tsytovich