Quantitative examination of the collapse of spin splitting in the quantum Hall regime

W. Pan, K. W. Baldwin, K. W. West, L. N. Pfeiffer, D. C. Tsui

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8 Scopus citations


We have quantitatively tested the theoretical model on the collapse of spin slitting in the quantum Hall effect regime proposed by Fogler and Shklovskii in a high-mobility two-dimensional electron system (2DES) realized in a heterojunction insulated-gate field-effect transistor. In the 2DES density range between n = 2 × 1010 and 2 × 1011 cm-2, the Landau level number N displays a power-law dependence on the critical electron density nc where the spin splitting collapses and N = 11.47 × n c0.64±0.01 (nc is in units of 1011 cm-2). This power-law dependence is in good agreement with the theoretical prediction in the low-density regime.

Original languageEnglish (US)
Article number161307
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number16
StatePublished - Oct 31 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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