A.C.-Transport Through a Two-Dimensional Quantum Point Contact

Дата и время публикации : 1996-09-24T21:44:48Z

Авторы публикации и институты :
I. E. Aronov
G. P. Berman
D. K. Campbell
S. V. Dudiy

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 4 pages (Revtex), 2 figures, submitted to PRL
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: We calculate the admittance of a two-dimensional quantum point contact (QPC) using a Boltzman-like kinetic equation derived for a partial Wigner distribution function in an effective potential. We show that this approach leads to the known stepwise behavior of the admittance as a function of the gate voltage. The emittance contains both a quantum inductance determined by the harmonic mean of the velocities for the propagating electron modes and a quantum capacitance determined by the reflected modes.

Category: Physics