• 文献标题:   Edge photocurrent in bilayer graphene due to inter-Landau-level transitions
  • 文献类型:   Article
  • 作  者:   CANDUSSIO S, DURNEV MV, SLIZOVSKIY S, JOTTEN T, KEIL J, BEL KOV VV, YIN J, YANG Y, SON SK, MISHCHENKO A, FAL KO V, GANICHEV SD
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:  
  • 被引频次:   11
  • DOI:   10.1103/PhysRevB.103.125408
  • 出版年:   2021

▎ 摘  要

We report the observation of the resonant excitation of edge photocurrents in bilayer graphene subjected to terahertz radiation and a magnetic field. The resonantly excited edge photocurrent is observed for both interband (at low carrier densities) and intraband (at high densities) transitions between Landau levels (LL). While the intraband LL transitions can be traced to the classical cyclotron resonance (CR) and produce strong resonant features, the interband-LL resonances have quantum nature and lead to the weaker features in the measured photocurrent spectra. The magnitude and polarization properties of the observed features agree with the semiclassical theory of the intraband edge photogalvanic effect, including its Shubnikov-de-Haas oscillations at low temperatures.