Metallic behavior in low-disorder two-dimensional hole systems in the presence of long- and short-range disorder

We compare directly the metallic behavior of high-quality, two-dimensional hole systems (2DHSs) in two GaAs device structures—one dominated by short-range disorder and the other by long-range disorder. We find that the type of disorder strongly affects the metallic behavior of the 2DHSs. In particul...

Full description

Saved in:
Bibliographic Details
Published in:Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2008-03, Vol.40 (5), p.1599-1601
Main Authors: Clarke, W.R., Yasin, C.E., Hamilton, A.R., Micolich, A.P., Simmons, M.Y., Muraki, K., Hirayama, Y., Pepper, M., Ritchie, D.A.
Format: Article
Language:English
Subjects:
2D hole systems
Disorder
Exact sciences and technology
Metal–Insulator transition
Physics
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We compare directly the metallic behavior of high-quality, two-dimensional hole systems (2DHSs) in two GaAs device structures—one dominated by short-range disorder and the other by long-range disorder. We find that the type of disorder strongly affects the metallic behavior of the 2DHSs. In particular, we find that metallic behavior is enhanced in 2D systems with a high proportion of large-angle scattering events.
ISSN:1386-9477
1873-1759
DOI:10.1016/j.physe.2007.09.179