Thermal spike, ctd - A. SORKIN with JA and RAFI KALISH

  1. Different fractions of sp2 and sp3 bonds were seen and each fraction had a different bandgap. See graphs of the BANDGAP and of the BANDGAP vs sp3.

  2. The structure of the amorphous heated layers depends very strongly on temperature, size of hot layers and structure of the initial amorphous sample (in the cases, where the frozen layers are amorphous.)

  3. As expected, sp2 bonded atoms appear in the structures at high temperature and the samples become conductive. The temperature required depends on the fraction of sp2 atoms in the outer frozen layers.

  4. Scaling is found in the curves of the dependence of the percent of sp3 bonded atoms in the sample on heating temperature.

  5. These results shed light on the transfer of energy from a slowing down ion to the diamond network and on the intermediate phases involved in this process.