Magnetoresistance in a stripe-shaped two-dimensional electron gas

Autor:	A. A. Bykov, N. T. Moshegov, José R. Leite, A. I. Toropov, Duncan K. Maude, J. C. Portal, G. M. Gusev, A. K. Bakarov
Rok vydání:	2001
Předmět:	Physics Magnetoresistance Condensed matter physics Plane (geometry) Superlattice Orbital motion Substrate (electronics) Electrical and Electronic Engineering Condensed Matter Physics Channelling Fermi gas Electronic Optical and Magnetic Materials Magnetic field
Zdroj:	Physica B: Condensed Matter. 298:79-82
ISSN:	0921-4526
DOI:	10.1016/s0921-4526(01)00264-2
Popis:	We measure large positive magnetoreistance in a nonplanar stripe-shaped two-dimensional electron gas (2DEG) in magnetic field up to 28 T. If the applied magnetic field is quasi-parallel to the substrate, the effective magnetic field becomes essentially nonuniform and sign alternating, because the orbital motion of 2DEG is sensitive to only the normal component of magnetic field. We find that the shape of the magnetoresistance traces is dramatically changed, when magnetic field becomes exactly parallel to the substrate plane. We attribute such behaviour of the magnetoresistance to the formation of snake-like orbits which are channelling along the stripes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2cfdb34fa8ed563926b68bb1f3e7e95b https://doi.org/10.1016/s0921-4526(01)00264-2 Zobrazit plný text záznamu Full Text from ScienceDirect