arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1804.01550cond-mat.str-elcond-mat.mes-hallhep-th
收藏

Weyl半金属在流体力学体系中的非局域输运

Nonlocal transport in Weyl semimetals in the hydrodynamic regime

E. V. Gorbar, V. A. Miransky, I. A. Shovkovy, P. O. Sukhachov

摘要:

利用自洽流体动力学框架研究了带有电流源和漏的半无限Weyl半金属平板中手征电子流体的非局域响应。结果表明,Chern-Simons项导致了电子流和电场的空间不对称性.最值得注意的是,相应的拓扑项可以导致负的非局部电阻。此外,它们引起的异常霍尔电流,这是敏感的电场的空间分布在平面的接触,并依赖于手征位移的方向。

英文摘要:

The nonlocal response of chiral electron fluid in a semi-infinite Weyl semimetal slab with the electric current source and drain attached to its surface is studied by using the consistent hydrodynamic framework. It is found that the Chern-Simons terms lead to a spatial asymmetry of the electron flow and the electric field. Most remarkably, the corresponding topological terms could result in a negative nonlocal resistance. In addition, they give rise to the anomalous Hall current, which is sensitive to the spatial distribution of the electric field in the plane of the contacts and depends on the orientation of the chiral shift.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑