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노화용,S. Lee,천승현,김형찬,L. N. Pfeiffer,K. W. West 한국물리학회 2010 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.57 No.61
The anomalous Hall effect of two-dimensional holes in a GaAs/AlGaAs heterostructure was measured under a slightly tilted-from-parallel magnetic field (B). In addition to the dominant ordinary Hall resistivity, which is linear in B, there is a small anomalous Hall resistivity correlated with the perpendicular spin magnetization of the holes due to the subband depopulation. When the anomalous Hall conductivity (σ A xy) is extracted from the experimental data, it exhibits a nonmonotonic dependence on B, a behavior expected for the intrinsic anomalous Hall effect in the 2D Rashba model. If σ A xy is plotted as a function of the longitudinal conductivity (σ xx), an intrinsic region in which σ A xy is almost constant and is several tenths of e2/h for σ xx of several tens of e2/h is identified.