Charge density oscillations in a quasi-two-dimensional electron gas for integer filling factors

Дата и время публикации : 1995-04-18T20:55:54Z

Авторы публикации и институты :
S. Sakhi (Concordia University)
P. Vasilopoulos (Concordia University)

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 12 pages, REVTeX 3.0
Первичная категория: cond-mat

Все категории : cond-mat, hep-th

Краткий обзор статьи: The possibility of charge density oscillations in a {it finite-thickness} two-dimensional system is investigated for strong magnetic fields and integer filling factors. Using an effective action formalism, it is shown that an {it oscillatory charge density} (OCD) is generated in a self-consistent way and is favored energetically over homogeneous distributions. It is smooth on the scale of the sample thickness and of the magnetic length. The modulus of its wave vector is shown to be experimentally accessible. The Hall voltage and the current density are shown to {it oscillate} with the same wave vector when a weak current is applied. The stability of the charge oscillations against impurity potentials is discussed.

Category: Physics