The cyclotron resonance energies, the corresponding oscillator strengths, and the cyclotron absorption spectrum for trilayer graphene are calculated for both ABA and ABC stacking. A gate potential across the stacked layers leads to $\left(1\right)$ a reduction of the transition energies, $\left(2\right)$ a lifting of the degeneracy of the zero Landau level, and $\left(3\right)$ the removal of the electron-hole symmetry.

• Received 21 April 2012

DOI:https://doi.org/10.1103/PhysRevB.86.085412