Skyrmions in a Hole Gas with Large Spin Gap and Strong Disorder

• Authors: L. Bryja , K. Ryczko , A. Wójs , J. Misiewicz , M. Potemski
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

73.20.Mf; 73.21.Fg; 78.20.Ls; 78.67.De

Discipline

• 78.20.Ls: Magneto-optical effects(for magneto-optical devices, see 85.70.Sq)
• 78.67.De: Quantum wells
• 73.21.Fg: Quantum wells
• 73.20.Mf: Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)(for collective excitations in quantum Hall effects, see 73.43.Lp)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2006
• Volume: 110
• Issue: 2
• Pages: 163-168

Dates

published

2006-08

received

2006-06-17

Contributors

author

L. Bryja

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

K. Ryczko

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

A. Wójs

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

J. Misiewicz

• Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

M. Potemski

• Grenoble High Magnetic Field Laboratory, CNRS, 38042 Grenoble Cedex 9, France

References

• 1. T. Skyrme, Proc. R. Soc. Lond. A, 262, 237, 1961; R. Ramajaran, Solitons and Instantons, North-Holland, Amsterdam 1982; D.H. Lee, C.L. Kane, Phys. Rev. Lett., 64, 1313, 1990
• 2. S.L. Sondhi, A. Karlhede, S.A. Kivelson, E.H. Rezayi, Phys. Rev. B, 47, 16419, 1993; H.A. Fertig, L. Brey, R. Côté, A.H. MacDonald, ibid., 50, 11018, 1994; A.H. MacDonald, H.A. Fertig, L. Brey, Phys. Rev. Lett., 76, 2153, 1996; H.A. Fertig, L. Brey, R. Côté, A.H. MacDonald, A. Karlhede, S.L. Sondhi, Phys. Rev. B, 55, 10671, 1997
• 3. Yu.A. Bychkov, S.V. Iordanskii, G.M. Eliashberg, JETP Lett., 33, 152, 1981; B.I. Halperin, Helv. Phys. Acta, 56, 75, 1983; C. Kallin, B.I. Halperin, Phys. Rev. B, 30, 5655, 1984
• 4. R.B. Laughlin, Phys. Rev. Lett., 50, 1395, 1983
• 5. E.H. Rezayi, Phys. Rev. B, 36, 5454, 1987
• 6. S.E. Barrett, G. Dabbagh, L.N. Pfeiffer, K.W. West, R. Tycko, Phys. Rev. Lett., 74, 5112, 1995; R. Tycko, S.E. Barrett, G. Dabbagh, L.N. Pfeiffer, K.W. West, Science, 268, 1460, 1995
• 7. A. Schmeller, J.P. Eisenstein, L.N. Pfeiffer, K.W. West, Phys. Rev. Lett., 75, 4290, 1995; D.K. Maude, M. Potemski, J.C. Portal, M. Henini, L. Eaves, G. Hill, M.A. Pate, ibid., 77, 4604, 1996; S.P. Shukla, M. Shayegan, S.R. Parihar, S.A. Lyon, N.R. Cooper, A.A. Kiselev, Phys. Rev. B, 61, 4469, 2000; Y.P. Shkolnikov, S. Misra, N.C. Bishop, E.P. De Poortere, M. Shayegan, Phys. Rev. Lett., 95, 066809, 2005
• 8. E.H. Aifer, B.B. Goldberg, D.A. Broido, Phys. Rev. Lett., 76, 680, 1996; J.G. Groshaus, V. Umansky, H. Shtrikman, Y. Levinson, I. Bar-Joseph, ibid., 93, 096802, 2004; C.M. Townsley, R. Chughtai, R.J. Nicholas, M. Henini, Phys. Rev. B, 71, 073303, 2005
• 9. J.J. Palacios, D. Yoshioka, A.H. MacDonald, Phys. Rev. B, 54, 2296, 1996; B. Králik, A.M. Rappe, S.G. Louie, ibid., 52, R11626, 1995; ibid., 56, 4760, 1997; V. Melik-Alaverdian, N.E. Bonesteel, G. Ortiz, ibid., 60, 8501, 1999; A. Wójs, J.J. Quinn, ibid., 66, 045323, 2002

Identifiers

DOI

10.12693/APhysPolA.110.163