Smet, J. H. and Jobst, S. and Klitzing, Klaus von and Weiss, Dieter and Wegscheider, Werner and Umansky, V.
Commensurate Composite Fermions in Weak Periodic Electrostatic Potentials: Direct Evidence of a Periodic Effective Magnetic Field.
Physical Review Letters 83 (12), pp. 2620-2623.
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Within the composite fermion model, it is anticipated that a periodic variation of the density in a two-dimensional electron system at half filling produces a periodic fictitious magnetic field. In regions of smaller density fictitious flux quanta are missing to compensate the external magnetic field. The observation of magnetic commensurability minima in the dc-transport response furnishes ...
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