Dynamical structure factor of two-dimensional electrons over a helium film
Patricia Cristina Venturini, Nelson Studart, and José Pedro Rino
Departamento de Física, Universidade Federal de São Carlos, 13565-905, São Carlos, São Paulo - Brazil
Received December 4, 2007
The dynamical structure factor of a two-dimensional electrons trapped to a helium film deposited on a solid substrate is determined through molecular dynamics simulations for different film thicknesses and two substrates. The phases of the system varying from the classical Wigner crystal to strong and intermediate-
correlated electron liquid as well the influence of the film thickness and substrate are analyzed in the numerical
PACS: 73.90+f Other topics in electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures; PACS: 61.20.Ja Computer simulation of liquid structure.
Key words: solid substrate, dynamical structure factor, helium film.