论文标题
高度半填充水平的异常列态状态
Anomalous Nematic States in High Half-Filled Landau Levels
论文作者
论文摘要
众所周知，具有半填充高（$ n \ ge 2 $）Landau水平的二维电子气体的基态是可压缩的电荷订购状态，称为量子厅条纹（QHS）阶段。 QHSS的通用特征是纵向电阻的最大（最小值）$ r_ {xx} $（$ r_ {yy} $）和非量化的霍尔电阻$ r_h $。在这里，我们在$ r_ {xx} $（$ r_ {yy} $）中向Emerment minima（Maxima）报告，并在$ r_h $中以$ r_h $中的高原样特征在半填充$ n \ ge 3 $ landau级别中。值得注意的是，这些意外的特征在低于QHSS的开始温度的温度下发展，这表明是一种新的基态。
It is well established that the ground states of a two-dimensional electron gas with half-filled high ($N \ge 2$) Landau levels are compressible charge-ordered states, known as quantum Hall stripe (QHS) phases. The generic features of QHSs are a maximum (minimum) in a longitudinal resistance $R_{xx}$ ($R_{yy}$) and a non-quantized Hall resistance $R_H$. Here, we report on emergent minima (maxima) in $R_{xx}$ ($R_{yy}$) and plateau-like features in $R_H$ in half-filled $N \ge 3$ Landau levels. Remarkably, these unexpected features develop at temperatures considerably lower than the onset temperature of QHSs, suggesting a new ground state.
