论文标题
石墨烯中整数和分数量子厅边缘模式的热量平衡
Heat equilibration of integer and fractional quantum Hall edge modes in graphene
论文作者
论文摘要
分数量子厅效应的孔偶联状态宿主反向传播的边缘通道，该通道被认为可以交换电荷和能量。这些交流是广泛的理论和实验著作的主题。特别是，目前尚不清楚整数量子厅边缘通道是否源于完全填充的Landau水平会影响沿边缘的热量平衡。在这封信中，我们提出了石墨烯的量子大厅状态中的热传输测量结果，表明整数通道可以与分数相稳定，从而导致明显不同的量化量化热传输的态度，依赖于边缘静电。我们的结果可以更好地理解分数量子厅制度中的复杂边缘物理。
Hole-conjugate states of the fractional quantum Hall effect host counter-propagating edge channels which are thought to exchange charge and energy. These exchanges have been the subject of extensive theoretical and experimental works; in particular, it is yet unclear if the presence of integer quantum Hall edge channels stemming from fully filled Landau levels affects heat equilibration along the edge. In this letter, we present heat transport measurements in quantum Hall states of graphene demonstrating that the integer channels can strongly equilibrate with the fractional ones, leading to markedly different regimes of quantized heat transport that depend on edge electrostatics. Our results allow for a better comprehension of the complex edge physics in the fractional quantum Hall regime.
