AViz EXAMPLE + Tricks for viewing three dimensional phenomena
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- Carbon exists in two common forms - graphite and diamond.
Graphite is a conductor and diamond an insulator. Graphite is soft and
diamond is hard.
- When diamond samples are sufficiently
damaged by irradiation, and then annealed, they turn into conductors.
Diamonds are used as insulators in industry; so if they are damaged
and turn to conductors delicate equipment becomes useless.
- Need to understand the damage process to know how to avoid it.
Rafi Kalish and collaborators hypothesised that the irradiation damage
followed by annealing
turns diamond into graphite in small regions. At a sufficient concentration
percolate and make a
conducting path thru the sample.