The absorption spectrum around nu=1: evidence for a small size Skyrmion

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We measure the absorption spectrum of a two-dimensional electron system (2DES) in a GaAs quantum well in the presence of a perpendicular magnetic field. We focus on the absorption spectrum into the lowest Landau Level around nu=1. We find that the spectrum consists of bound electron-hole complexes, trion and exciton like. We show that their oscillator strength is a powerful probe of the 2DES spatial correlations. We find that near nu=1 the 2DES ground state consists of Skyrmions of small size (a few magnetic lengths).
To be published in Phys Rev Lett. To be presented in ICSP2004, Flagstaff, Arizona. 4 figures (1 of them in color). 5 pages

Keywords

Strongly Correlated Electrons, Mesoscale and Nanoscale Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/144183

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0406756
 http://arxiv.org/abs/cond-mat/0406756
 Phys. Rev. Lett. 93, 096802 (2004)
 doi:10.1103/PhysRevLett.93.096802

Collections

arXiv