论文标题
分数量子厅边缘模式的磁场依赖性平衡
Magnetic field dependent equilibration of fractional quantum Hall edge modes
论文作者
论文摘要
分数电导是通过对填充1/3或2/3的填充量量子量子霍尔（FQH）液体来分区$ν= 1 $ edge状态来测量的，以进行电流注入和检测。我们分别在$ν= 1 $高原的低磁场末端观察到两组FQH Plateaus 1/9、2/9、4/9、4/9、4/9和1/6、1/3、2/3。这些发现是由三种FQH边缘模式的磁场依赖性平衡来解释的，电导$ e^2/3H $由边缘重建产生。结果显示，随着场的增加，FQH边缘模式的平衡长度显着增强。
Fractional conductance is measured by partitioning $ν= 1$ edge state using gate-tunable fractional quantum Hall (FQH) liquids of filling 1/3 or 2/3 for current injection and detection. We observe two sets of FQH plateaus 1/9, 2/9, 4/9 and 1/6, 1/3, 2/3 at low and high magnetic field ends of the $ν= 1$ plateau respectively. The findings are explained by magnetic field dependent equilibration of three FQH edge modes with conductance $e^2/3h$ arising from edge reconstruction. The results reveal remarkable enhancement of the equilibration lengths of the FQH edge modes with increasing field.
