期刊论文详细信息
Drive dependence of the Hall angle for a sliding Wigner crystal in a magnetic field
Article
关键词: DYNAMICS;    TEMPERATURE;    CONDUCTION;    LATTICES;    ELECTRON;    THRESHOLD;    PHASES;    MOTION;    FILMS;    ARRAY;   
DOI  :  10.1103/PhysRevB.103.125107
来源: SCIE
【 摘 要 】

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 the 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.

【 授权许可】

Free   

  文献评价指标  
  下载次数:0次 浏览次数:3次