Track formation in indium phosphide under irradiation by swift heavy ions

Abstract

In the framework of this paper we carried out a numerical simulation of an evolution of the temperature fields that arise along the trajectories of swift heavy ions ({E/M} ~ units of MeV/a.m.u.) in indium phosphide with regard for energy dissipation and variation of the charge state of stopping ions over the depth. Thermal spike model was used as a physical basis for calculations. The simulation results on spatial parameters of being formed tracks are in good agreement with existing experimental data. Charge state fluctuations mechanism is discussed as being responsible for discontinuous track formation.