V. A. Tkachenko, O. A. Tkachenko, Z. D. Kvon, D. G. Baksheev, A. L. Aseev, J. C. Portal, “Coherent scattering in a small quantum dot”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2004, Volume 80, Issue 9,Pages <nobr>688

This article is cited in 5 papers

CONDENSED MATTER

Coherent scattering in a small quantum dot

V. A. Tkachenko^a, O. A. Tkachenko^bac, Z. D. Kvon^ba, D. G. Baksheev^a, A. L. Aseev^a, J. C. Portal^c

^a Institute of Semiconductor Physics of SB RAS, Novosibirsk
^b Novosibirsk State University
^c Grenoble High Magnetic Fields Laboratory, MPI-FKF and CNRS, B.P.166, F-38042 Grenoble, France

Abstract: Ballistic transport in an open small (100 nm) three-terminal quantum dot has been analyzed. The dot is based on the high-mobility 2D electron gas of the AlGaAs/GaAs heterojunction. It has been shown that the gate oscillations of the resistance of such a dot arise due to the coherent scattering of electrons on its quasidiscrete levels and these oscillations are suppressed by a weak magnetic field.

PACS: 73.23.Ad, 73.50.-h

Received: 04.10.2004