期刊
SEMICONDUCTORS
卷 54, 期 4, 页码 465-470出版社
PLEIADES PUBLISHING INC
DOI: 10.1134/S106378262004020X
关键词
graphene; photoconductivity; terahertz radiation; magnetic field
资金
- Foundation for Polish Science (IRA Program-CENTERA) [TEAM/2016-3/25]
- FLAG-ERA program (project DeMeGRaS)
- Russian Foundation for Basic Research [18-0200498]
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.
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