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2007 | 112 | 2 | 269-273
Article title

Electron-Electron Interaction Effects in Quantum Hall Regime of GaN/AlGaN Heterostructures

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EN
Abstracts
EN
We measured the activation of resistivity at quantum Hall minima in high mobility two-dimensional electron gas confined at AlGaN/GaN interface. The effective g-factor and effective mass was deduced. The electron-electron interactions modify both quantities compared to their bare band values. It is found that the influence of interactions is much more pronounced onto g-factor than effective mass. The relative spin susceptibility was also calculated and compared with available theories. The best agreement was found with the ideal two-dimensional gas model in random phase approximation.
Keywords
EN
Contributors
author
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Grenoble High Magnetic Field Laboratory, MPI-CNRS, 38042 Grenoble, France
author
  • Grenoble High Magnetic Field Laboratory, MPI-CNRS, 38042 Grenoble, France
author
  • GES-UMR, CNRS-Université Montpellier 2, Place E. Bataillon, 34950 Montpellier, France
  • High Pressure Research Center, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland
References
  • 1. Ying Zhang, S. Das Sarma, Phys. Rev. B, 72, 075308, 2005
  • 2. V.M. Pudalov, M.E. Gershenson, H. Kojima, in: Fundamental Problems of Mesoscopic Physics. Interaction and Decoherence, Eds. I.V. Lerner, B.L. Altshuler, Y. Gefen, NATO Sci. Series II, Mathematics, Physics and Chemistry, Vol. 154, Kluwer, New York 2004, p. 309
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  • 4. A. Woloś, W. Jantsch, K. Dybko, Z. Wilamowski, C. Skierbiszewski, in: Proc. 28th Int. Conf. on the Physics of Semiconductors, Vienna 2006, Eds. W. Jantsch, F. Schaffler, AIP Conf. Proc., 893, 1313, 2007
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  • 7. K.S. Cho, Tsai-Yu Huang, Chao-Ping Huang, Yi-Hsing Chiu, C.-T. Liang, Y.F. Chen, J. Appl. Phys., 96, 7370, 2004
  • 8. C. Attaccalite, S. Moroni, P. Gori-Giorgi, G.B. Bachelet, Phys. Rev. Lett., 88, 256601, 2002
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv112n223kz
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