| Issue |
Europhys. Lett.
Volume 38, Number 2, April II 1997
|
|
|---|---|---|
| Page(s) | 141 - 146 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00215-y | |
| Published online | 01 September 2002 | |
Spin polarizations at and about the lowest filled Landau level
1
Institute of Mathematical Sciences - Taramani, Madras 600 113, India
2
Theoretical Physics, University of Oulu - Linnanmaa, FIN-90570 Oulu, Finland
Received:
6
January
1996
Accepted:
7
March
1997
The spin polarization vs. temperature at or near a fully
filled lowest Landau level is explored for finite-size systems in
a periodic rectangular geometry. Our results at 
which
also include the finite-thickness correction are in good
agreement with the experimental results. We also find that the
interacting electron system results are in complete agreement
with the results of the sigma model, i.e. skyrmions on a torus
have a topological charge of 
and the Q=1 solution is
like a single spin-flip excitation. Our results therefore
provide direct evidence for the skyrmionic nature of the
excitations at this filling factor.
PACS: 73.40.Hm – Quantum Hall effect (integer and fractional) / 73.20.Dx – Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers)
© EDP Sciences, 1997
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.