QUAFITIZED HALL EFFECT IM VERY STRONG MAGEETIC FIELD |
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Authors: | LAI Wu-yan SHEN Jue-lian SU Zhao-bin YU Lu |
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Institution: | 1. Institute of Physics, Academia Sinica, Beijing, China;
2. Institute of Theoretical Physics, Academia Sinica, Beijing, China |
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Abstract: | The experimentally observed quantized Hall plateau of Pxy=3h/e2 in two-dimensional electron gas, when the lowest Landau level is 1/3 filled, is discussed. The consistency of the cxtremal condition for the Hartree-Fock potential in the possible charge-density-wave state with, opening an energy gap at the Fermi level is indicated. The exactness of Such 1/3 "fractional" quantization might be justified by a modified version of Laughlin's argument based on gauge invariance. |
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