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VOLUME 102 | ISSUE 1 | PAGE 40
Interaction-induced merging of Landau levels in an electron system of double quantum wells
Abstract
We show that the disappearance of the chemical potential jumps over the range of perpendicular magnetic fields at fixed integer filling factor in a double quantum well with a tunnel barrier is caused by the interaction-induced level merging. The distribution function in the merging regime is special in that the probability to find an electron with energy equal to the chemical potential is different for the two merged levels.