Volume 76, Number 4, November 2006
|Page(s)||657 - 663|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||13 October 2006|
Electron transport through antidot superlattices in heterostructures: New magnetoresistance resonances in lattices with a large aspect ratio of antidot diameter to lattice period
Institute of Semiconductor Physics - Novosibirsk 630090, Russia
2 GHMFL, CNRS - BP 166, F-38042, Grenoble, Cedex 9, France
3 INSA - 135 Avenue de Rangueil, F-31077, Toulouse Cedex 4, France
4 Institut Universitaire de France - Toulouse, France
5 CEA/Leti - F-38054, Grenoble, Cedex 9, France
Accepted: 22 September 2006
In the present work we have investigated the transport properties in a number of samples with square antidot lattices of different periods. In samples with lattice periods equal to 700 and 850 we have observed the conventional low-field commensurability magnetoresistance peaks consistent with the previous observations in GaAs/AlGaAs and samples with antidot lattices. In samples with a 600 lattice period a new series of well-developed magnetoresistance oscillations has been found beyond the last commensurability peak which are supposed to originate from periodic skipping orbits encircling an antidot with a particular number of bounds.
PACS: 73.21.Cd – Superlattices / 73.23.Ad – Ballistic transport
© EDP Sciences, 2006
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