Trap-recharging waves versus damped, forced charge-density oscillations in hexagonal silicon carbide M. Lemmer, B. Hilling, M. Wöhlecke, M. Imlau, A. A. Lebedev, V. V. Bryksin and M. P. Petrov Eur. Phys. J. B, 60 1 (2007) 9-14 Published online: 23 November 2007 DOI: 10.1140/epjb/e2007-00318-9