Magnetic Properties of GaMnAs Single Layers and GaInMnAs Superlattices Investigated at Low Temperature and High Magnetic Field

• Authors: C. Hernandez , F. Terki , S. Charar , J. Sadowski , D. Maude , V. Stanciu , P. Svedlindh
• Languages of publication: EN

Abstracts

EN

Magnetotransport properties of GaMnAs single layers and InGaMnAs/InGaAs superlattice structures were investigated at temperatures from 4 K to 300 K and magnetic fields up to 23 T to study the influence of carriers confinement through different structures. Both single layers and superlattice structures show paramagnetic-to-ferromagnetic phase transition. In GaMnAs/InGaAs superlattice beside the Curie temperature (T_c≈40 K), a new phase transition is observed close to 13 K.

Keywords

EN

75.50.Pp; 75.70.-i

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 75.50.Pp: Magnetic semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2003
• Volume: 103
• Issue: 6
• Pages: 613-619

Dates

published

2003-06

received

2003-05-30

Contributors

author

C. Hernandez

• Groupe d'Etude des Semiconducteurs CC074, Université Montpellier II, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France

author

F. Terki

• Groupe d'Etude des Semiconducteurs CC074, Université Montpellier II, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France

author

S. Charar

• Groupe d'Etude des Semiconducteurs CC074, Université Montpellier II, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France

author

J. Sadowski

• Niels Bohr Institute, Copenhagen University, 2100 Copenhagen, Denmark
• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warszawa, Poland
• MAX-Lab, Lund University, P.O. Box 118, 221 00 Lund, Sweden

author

D. Maude

• High Magnetic Field Laboratory, CNRS-MPI, 25 Avenue des Martyrs, 38042 Grenoble, France

author

V. Stanciu

• Uppsala University, 751 20 Uppsala, Sweden

author

P. Svedlindh

• Uppsala University, 751 20 Uppsala, Sweden

References

• 1. H. Ohno, H. Munekata, S. Von Molnar, L.L. Chang, Phys. Rev. Lett., 68, 2664, 1992
• 2. H. Ohno, A. Shen, F. Matsukura, A. Oiwa, A. Endo, S. Katsumoto, Y. Iye, Appl. Phys. Lett., 69, 363, 1996
• 3. K.C. Ku, S.J. Potashnik, R.F. Wang, S.H. Chun, P. Schiffer, N. Samarth, M.J. Seong, A. Mascarenhas, E. Johnston-Halperin, R.C. Myers, A.C. Gossard, D.D. Awschalom, Appl. Phys. Lett., 82, 2302, 2003
• 4. K.W. Edmonds, K.Y. Wang, R.P. Campion, A.C. Neumann, N.R.S. Farley, B.L. Gallagher, C.T. Foxon, Appl. Phys. Lett., 81, 4991, 2002
• 5. J. Sadowski, R. Mathieu, P. Svedlindh, M. Karlsteen, J. Kanski, Y. Fu, J.Z. Domagała, W. Szuszkiewicz, B. Hennion, D. K. Maude, R. Airey, G. Hill, Thin Solid Films, 412, 122, 2002
• 6. J. Sadowski, R. Mathieu, P. Svedlindh, J. Kanski, M. Karlsteen, K. Świątek, J.Z. Domagała, Acta Phys. Pol. A, 102, 687, 2002
• 7. B.S. Sorensen, J. Sadowski, S.E. Andresen, P.E. Lindelof, Phys. Rev. B, 66, 233313, 2002
• 8. A. Oiwa, S. Katsumoto, A. Endo, M. Hirasawa, H. Ohno, Y. Sugawara, A. Shen, F. Matsukura, Y. Iye, Solid State Commun., 103, 209, 1997
• 9. T. Slupinski, H. Munekata, A. Oiwa, Appl. Phys. Lett., 80, 1592, 2002
• 10. C. Hernandez, F. Terki, S. Charar, J. Sadowski, D. Maude, J. Magn. Magn. Mater., in press
• 11. T. Jungwirth, W.A. Atkinson, B.H. Lee, A.H. MacDonald, Phys. Rev. B, 59, 9818, 1999

Identifiers

DOI

10.12693/APhysPolA.103.613