论文标题
在磁场中滑动的Wigner晶体的大厅角度依赖性
Drive Dependence of the Hall Angle for a Sliding Wigner Crystal in a Magnetic Field
论文作者
论文摘要
我们在存在淬灭和磁场的情况下数字检查Wigner晶体的滴定和滑动动力学。在无疾病的极限中，Wigner Crystal Hall角度独立于晶体速度，但是当存在障碍时，我们发现霍尔角在含量阈值下方接近零，并随着驱动器的增加而逐渐增加，然后在接近最高驱动器处接近无序值的饱和度。驱动器依赖性是当电荷在固定位点上移动时产生的侧跳效应的结果。在较高的速度下，侧跳的大小降低。驱动依赖的霍尔角对于各种无序参数是可靠的，应该是在存在猝灭障碍和磁场的情况下驱动的经典费用的一般特征。
We numerically examine the depinning and sliding dynamics of a Wigner crystal in the presence of quenched disorder and a magnetic field. In the disorder-free limit, the Wigner crystal Hall angle is independent of crystal velocity, but when disorder is present, we find that Hall angle starts near zero at the depinning threshold and increases linearly with increasing drive before reaching a saturation close to the disorder free value at the highest drives. The drive dependence is the result of a side jump effect produced when the charges move over pinning sites. The magnitude of the side jump is reduced at the higher velocities. The drive dependent Hall angle is robust for a wide range of disorder parameters and should be a generic feature of classical charges driven in the presence of quenched disorder and a magnetic field.
