Coherent phonons in a $B{i}_{2}S{e}_3$ film generated by an intense single-cycle THz pulse

A. A. Melnikov, K. N. Boldyrev, Yu. G. Selivanov +3

We report an observation of coherent phonons of $E_g^1$, $E_u^1$, $A_{1g}^1$, and $E_g^2$ symmetry generated in a single-crystal film of $B{i}_{2}S{e}_3$ by an intense single-cycle THz p…