A. A. Bykov, D. V. Nomokonov, A. K. Bakarov, A. V. Goran, O. Estibals, J. C. Portal, “Influence of Fermi-system chirality on the temperature dependence of the Aharonov–Bohm effect”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2004, Volume 79, Issue 1,Pages <nobr>34

CONDENSED MATTER

Influence of Fermi-system chirality on the temperature dependence of the Aharonov–Bohm effect

A. A. Bykov^a, D. V. Nomokonov^a, A. K. Bakarov^a, A. V. Goran^a, O. Estibals^b, J. C. Portal^b

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

Abstract: The Aharonov–Bohm effect in submicron rings with narrow electron channels was studied in the range of magnetic fields from 0 to 15 T and temperatures from 0.1 to 10 K. It is found that the temperature dependences of the $h/e$-oscillation amplitude at low magnetic fields and in the situation of tunnel-coupled edge current states are different. The obtained experimental data are explained by the influence of Fermi-system chirality on the coherent transport in a ring interferometer.

PACS: 73.23.-b, 73.40.Gk

Received: 13.11.2003