Terahertz Photoconductivity in Graphene in a Magnetic Field

Yu B. Vasiliev*, S. N. Novikov, S. N. Danilov, S. D. Ganichev

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Abstract: The terahertz photoconductivity in epitaxial graphene grown on SiC substrates is investigated in a magnetic field. The magnetic-field dependence of the photoresponse signal amplitude is examined at different electron densities, bias currents, and terahertz radiation intensities. The experimental results are explained well by a photoconductivity mechanism based on the heating of electrons by terahertz radiation. A strong increase in the photoconductivity signal with increasing magnetic field caused by an increase in the relaxation time due to the suppression of electron-electron scattering is observed.

Original languageEnglish
Pages (from-to)465-470
Number of pages6
JournalSemiconductors
Volume54
Issue number4
DOIs
Publication statusPublished - 1 Apr 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • graphene
  • magnetic field
  • photoconductivity
  • terahertz radiation

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