Low Temperature Physics: 34, 388 (2008); https://doi.org/10.1063/1.2911661 (4 pages)
Физика Низких Температур: Том 34, Выпуск 4-5 (Апрель 2008), c. 32767-488    ( к оглавлению , назад )

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
E-mail: studart@df.ufscar.br

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 experiments.

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.