Anomalous spin-dependent behaviour of one-dimensional subbands

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We report a new electron interaction effect in GaAs/AlGaAs quantum wires. Using DC-bias spectroscopy, we show that large and abrupt changes occur to the energies of spin-down (lower energy) states as they populate. The effect is not observed for spin-up energy states. At B=0, interactions have a pronounced effect, in the form of the well-known 0.7 Structure. However, our new results show that interactions strongly affect the energy spectrum at all magnetic fields, from 0 to 16T, not just in the vicinity of the 0.7 Structure.
4 pages, 2 figures

Keywords

Mesoscale and Nanoscale Physics, Strongly Correlated Electrons

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/123465

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0702177
 http://arxiv.org/abs/cond-mat/0702177
 PRB v.72, p.193305 (2005)
 doi:10.1103/PhysRevB.72.193305

Collections

arXiv