Skyrmions in a Hole Gas with Large Spin Gap and Strong Disorder |
| L. Bryjaa, K. Ryczkoa, A. Wójsa, J. Misiewicza and M. Potemskib
aInstitute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland bGrenoble High Magnetic Field Laboratory, CNRS, 38042 Grenoble Cedex 9, France |
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| Received: 17 06 2006; |
| In the photoluminescence excitation spectra of two-dimensional valence holes with large spin gap and strong disorder we find evidence for quantum Hall ferromagnetism and small skyrmions around the Landau level filling factorν=1. This interpretation is supported by numerical calculations. |
| DOI: 10.12693/APhysPolA.110.163 PACS numbers: 73.20.Mf, 73.21.Fg, 78.20.Ls, 78.67.De |