Magnetic breakdown in the semimetallic InAs/GaSb system

We have performed tilted field magnetotransport measurements of semimetallic InAs/GaSb structures. It has been observed that superlattices behave in a distinctly different manner to single quantum well samples. We show that the observation of Shubnikov-de-Haas (SdH) oscillations requires that carrie...

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Detalhes bibliográficos
Principais autores: Symons, D, Lakrimi, M, Nicholas, R, Maude, D, Portal, J, Mason, N, Walker, P
Formato: Conference item
Publicado em: 1998
Descrição
Resumo:We have performed tilted field magnetotransport measurements of semimetallic InAs/GaSb structures. It has been observed that superlattices behave in a distinctly different manner to single quantum well samples. We show that the observation of Shubnikov-de-Haas (SdH) oscillations requires that carriers are able to tunnel across the gaps between the unconnected Fermi surface islands. (C) 1998 Elsevier Science B.V. All rights reserved.