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Fizika i Tekhnika Poluprovodnikov, 2020, Volume 54, Issue 4, Pages 388–393
DOI: https://doi.org/10.21883/FTP.2020.04.49146.9322 (Mi phts5248) 		 
Carbon systems

Terahertz photoconductivity in graphene in a magnetic field

Yu. B. Vasil'eva, S. N. Novikovb, S. N. Danilovc, S. D. Ganichevcd

a Ioffe Institute, St. Petersburg
b Aalto University, Tietotie 3, 02150 Espoo, Finland
c Terahertz Center TerZ, University of Regensburg, Regensburg, Germany
d CENTERA Laboratories, Institute of High Pressure Physics, Polish Academy of Sciences, 01-142 Warsaw, Poland
Full-text PDF (683 kB)
DOI: https://doi.org/10.21883/FTP.2020.04.49146.9322
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.
Keywords: graphene, photoconductivity, terahertz radiation, magnetic field.
Funding agency Grant number
Foundation for Polish Science MAB/2018/9
Deutsche Forschungsgemeinschaft DeMeGRaS
GA501/16-1
Russian Foundation for Basic Research 18-02-00498
This study was supported by the Foundation for Polish Science (IRA Program-CENTERA, TEAM/2016-3/25), the FLAG-ERA program (project DeMeGRaS), and the Russian Foundation for Basic Research, project no. 18-02-00498.
Received: 28.11.2019
Revised: 05.12.2019
Accepted: 05.12.2019
English version:
Semiconductors, 2020, Volume 54, Issue 4, Pages 465–470
DOI: https://doi.org/10.1134/S106378262004020X
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: Yu. B. Vasil'ev, S. N. Novikov, S. N. Danilov, S. D. Ganichev, “Terahertz photoconductivity in graphene in a magnetic field”, Fizika i Tekhnika Poluprovodnikov, 54:4 (2020), 388–393; Semiconductors, 54:4 (2020), 465–470
Citation in format AMSBIB
\Bibitem{VasNovDan20}
\by Yu.~B.~Vasil'ev, S.~N.~Novikov, S.~N.~Danilov, S.~D.~Ganichev
\paper Terahertz photoconductivity in graphene in a magnetic field
\jour Fizika i Tekhnika Poluprovodnikov
\yr 2020
\vol 54
\issue 4
\pages 388--393
\mathnet{http://mi.mathnet.ru/phts5248}
\crossref{https://doi.org/10.21883/FTP.2020.04.49146.9322}
\elib{https://elibrary.ru/item.asp?id=42776702}
\transl
\jour Semiconductors
\yr 2020
\vol 54
\issue 4
\pages 465--470
\crossref{https://doi.org/10.1134/S106378262004020X}
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