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 language | English |
|---|---|
| Pages (from-to) | 465-470 |
| Number of pages | 6 |
| Journal | Semiconductors |
| Volume | 54 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Apr 2020 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- graphene
- magnetic field
- photoconductivity
- terahertz radiation