Magneto-optical probe of the two-dimensional hole-system low-temperature ground states

Authors

A. G. Davies, University of New South Wales
E. E. Mitchell, University of New South Wales
R G. Clark, University of New South Wales
Philip E. Simmonds, University of WollongongFollow
D. A. Ritchie, University of Cambridge, UK
D. Y. Simmons, University of Cambridge, UK
M. Pepper, University of Cambridge, UK
G. A. Jones, University of Cambridge, UK

Publication Details

This article was originally published as: Davies, AG, Mitchell, EE, Clark, RG, Simmonds, PE, Ritchie, DA, Simmons, MY, Pepper, M & Jones, GAC, Magneto-optical probe of the two-dimensional hole-system low-temperature ground states, Physical Review B, 1995, 51(11), 7357-7360. Copyright 1995 American Physical Society. The original journal can be found here.

Abstract

Band-gap magnetophotoluminescence (PL) has been used to study a high-quality, low-density p-type GaAs-AlxGa1-xAs single quantum well at millikelvin temperatures. Two PL lines associated with recombination in the quantum well are observed. The lower-energy line, present over the entire field range, displays intensity minima at integer quantum Hall states and a marked intensity falloff to a minimum value as the Landau-level filling factor is reduced to ν=1/3. The higher-energy line emerges in the extreme quantum regime ν