Circular photon drag effect in bulk tellurium
- Resource Type
- Authors
- Leonid Golub; Vadim A. Shalygin; I. I. Farbshtein; Sergey Danilov; M. D. Moldavskaya
- Source
- Subject
- Photon
chemistry.chemical_element
Physics::Optics
FOS: Physical sciences
02 engineering and technology
Photon energy
01 natural sciences
0103 physical sciences
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
010306 general physics
Absorption (electromagnetic radiation)
Physics
Photocurrent
Condensed matter physics
Condensed Matter - Mesoscale and Nanoscale Physics
business.industry
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
Semiconductor
chemistry
Drag
Charge carrier
Atomic physics
0210 nano-technology
business
Tellurium
- Language
The circular photon drag effect is observed in a bulk semiconductor. The photocurrent caused by a transfer of both translational and angular momenta of light to charge carriers is detected in tellurium in the mid-infrared frequency range. Dependencies of the photocurrent on the light polarization and on the incidence angle agree with the symmetry analysis of the circular photon drag effect. Microscopic models of the effect are developed for both intra- and inter-subband optical absorption in the valence band of tellurium. The shift contribution to the circular photon drag current is calculated. An observed decrease of the circular photon drag current with increase of the photon energy is explained by the theory for inter-subband optical transitions. Theoretical estimates of the circular photon drag current agree with the experimental data.
Comment: 8 pages, 4 figures