| Numéro |
J. Phys. IV France
Volume 131, December 2005
|
|
|---|---|---|
| Page(s) | 285 - 286 | |
| DOI | https://doi.org/10.1051/jp4:2005131073 | |
| Publié en ligne | 18 janvier 2006 | |
International Workshop on Electronic Crystals
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 285-286
DOI: 10.1051/jp4:2005131073
1 LPTHE, CNRS UMR 7589, Université Paris 6 et 7, 4 place Jussieu, 75252 Paris Cedex 05, France
2 LPS, CNRS UMR 8502, Université Paris-Sud, 91405 Orsay Cedex, France
3 Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands
© EDP Sciences 2005
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 285-286
DOI: 10.1051/jp4:2005131073
Novel composite-fermion phases: Crystals, stripes, and higher generations
M.O. Goerbig1, P. Lederer2 and C. Morais Smith31 LPTHE, CNRS UMR 7589, Université Paris 6 et 7, 4 place Jussieu, 75252 Paris Cedex 05, France
2 LPS, CNRS UMR 8502, Université Paris-Sud, 91405 Orsay Cedex, France
3 Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands
Abstract
Residual interactions between composite fermions, the quasi-particles
responsible for the fractional quantum Hall effect, may be neglected at
the Landau-level filling factors
, at which most fractional
quantum Hall states are observed. However, they become relevant at fillings
in between states of this series. We have derived the form of the interaction
potential of composite fermions within a recently developed Hamiltonian
formalism, and we show how these residual interaction may give rise to novel
phases, such as crystals and stripes of composite fermions, as well as
higher-generation states. The latter may be responsible for a recently
observed fractional quantum Hall effect at 
.
© EDP Sciences 2005