Linewidth of Cyclotron Absorption in Band-Gap Graphene: Relaxation Time Approximation vs. Monte Carlo Method

Authors S.V. Kryuchkov1,2 , E.I. Kukhar’1 , D.V. Zav’yalov2

1 Volgograd State Socio-Pedagogical University, Physical Laboratory of Low-Dimensional Systems, 27, V.I. Lenin Ave., 400066 Volgograd, Russia

2 Volgograd State Technical University, 28, V.I. Lenin Ave., 400005 Volgograd, Russia

Е-mail [email protected], [email protected], [email protected]
Issue Volume 7, Year 2015, Number 1
Dates Received 17 November 2014; revised manuscript received 09 March 2015; published online 25 March 2015
Citation S.V. Kryuchkov, E.I. Kukhar’, D.V. Zav’yalov, J. Nano- Electron. Phys. 7 No 1, 01007 (2015)
PACS Number(s) 72.80.Vp, 72.20.Ht, 72.15.Gd
Keywords Graphene (23) , Cyclotron resonance, Monte Carlo method (4) .
Annotation The power of the elliptically polarized electromagnetic radiation absorbed by band-gap graphene in presence of constant magnetic field is calculated. The linewidth of cyclotron absorption is shown to be non-zero even if the scattering is absent. The calculations are performed analytically with the Boltzmann kinetic equation and confirmed numerically with the Monte Carlo method. The dependence of the linewidth of the cyclotron absorption on temperature applicable for a band-gap graphene in the absence of collisions is determined analytically.

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