Heat transport in fullerite samples

The absolute value of the coefficient of thermal conductivity k(T) of fulle rite samples and its temperature dependence strongly depend on the conditio ns of the sample preparation. In our experiments we have studied the transp ort properties of perfect single crystals and of pure C-60 powder compacted under different conditions. The compacted samples were pressurized at low temperature (only compacted samples) or polymerized at high pressure and hi gh temperatures. (C) 1999 Elsevier Science B.V. All rights reserved.