arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1008.2116cond-mat.mes-hall
收藏

圆形交流霍尔效应

Circular ac Hall Effect

J. Karch, P. Olbrich, M. Schmalzbauer, C. Zoth, C. Brinsteiner, M. Fehrenbacher, U. Wurstbauer, M. M. Glazov, S. A. Tarasenko, E. L. Ivchenko, D. Weiss, J. Erom… 展开作者

J. Karch, P. Olbrich, M. Schmalzbauer, C. Zoth, C. Brinsteiner, M. Fehrenbacher, U. Wurstbauer, M. M. Glazov, S. A. Tarasenko, E. L. Ivchenko, D. Weiss, J. Eroms, R. Yakimova, S. Lara-Avila, S. Kubatkin, S. D. Ganichev

摘要:

我们报告的圆形交流霍尔效应的观察,其中电流是唯一的驱动由交叉的交流电场和磁场的圆偏振辐射。在室温下用圆偏振太赫兹辐射照射石墨烯的无偏单层片产生-在倾斜入射下-垂直于入射平面的电流,其符号通过切换辐射螺旋度而反转。与经典的直流霍尔效应一样,电压是由交叉的电场和磁场引起的,然而这些电场和磁场随光的频率旋转。

英文摘要:

We report the observation of the circular ac Hall effect where the current is solely driven by the crossed ac electric and magnetic fields of circularly polarized radiation. Illuminating an unbiased monolayer sheet of graphene with circularly polarized terahertz radiation at room temperature generates - under oblique incidence - an electric current perpendicular to the plane of incidence, whose sign is reversed by switching the radiation helicity. Alike the classical dc Hall effect, the voltage is caused by crossed electric and magnetic fields which are however rotating with the light's frequency.

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。

↑