Investigation of the zero-field 2D "metallic" state with r(s) and k(F)l controlled independently

Lewalle, A., Pepper, M., Ford, C.J.B., Paul, D.J. , Griffin, N., Coonan, B.P., Redmond, G. and Crean, G.M. (2002) Investigation of the zero-field 2D "metallic" state with r(s) and k(F)l controlled independently. Physica E: Low-Dimensional Systems and Nanostructures, 12(1-4), pp. 616-619. (doi: 10.1016/S1386-9477(01)00400-3)

Abstract

We compare the rise in resistivity with increasing temperature in the “metallic” regime for a range of electron densities and for several values of substrate bias. This allows the strength of Coulomb interactions (rS) and of disorder (1/kFl) to be controlled independently. For temperatures well below the Fermi temperature, our data obey a scaling law where kFl, and not rS, is the crucial parameter, suggesting that the “metallic” state is not a novel state caused by interactions.

• Item Type: Articles
• Additional Information: 14th International Conference on the Electronic Properties of Two-Dimensional Systems, Prague, Czech Republic, 30 July - 03 Aug 2001
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Paul, Professor Douglas
• Authors: Lewalle, A., Pepper, M., Ford, C.J.B., Paul, D.J., Griffin, N., Coonan, B.P., Redmond, G., and Crean, G.M.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Research Group: Semiconductor Devices
• Journal Name: Physica E: Low-Dimensional Systems and Nanostructures
• Publisher: Elsevier BV
• ISSN: 1386-9477
• ISSN (Online): 1873-1759
• Published Online: 27 November 2001