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Influence of spin on the activation energies at ν=1/3

Dethlefsen, A. F., Mariani, E., Wegscheider, Werner and Haug, R. J. (2006) Influence of spin on the activation energies at ν=1/3. Physica E Low-dimensional Systems and Nanostructures 34 (1-2), pp. 108-111.

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The activation energy Δ of the fractional quantum Hall state at constant filling factor View the MathML source and also at View the MathML source and View the MathML source has been measured as a function of the perpendicular magnetic field B while modulating the electron density via a top gate. At small magnetic fields we observe a linear increase of Δ with the magnetic field. The slope of Δ vs. B allows us to directly extract the composite fermion g-factor.

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Item type:Article
Date:August 2006
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Identification Number:
73.43.Lp; 71.10.PmPACS
Keywords:Magneto-transport; Fractional quantum Hall effect; 2D electron gas; Activation energy
Dewey Decimal Classification:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Item ID:12200
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