Author/Authors :
Davydov، نويسنده , , V.A. and Agafonov، نويسنده , , V. and Allouchi، نويسنده , , H. and Céolin، نويسنده , , R. and Dzyabchenko، نويسنده , , A.V. and Szwarc، نويسنده , , H.، نويسنده ,
Abstract :
The tetragonal polymerized phase (T) of C60 previously considered as metastable is shown experimentally to be thermodynamically stable. Three different pressure-temperature paths were followed to prepare it. It has been found that the increase of treatment time entails progressive disappearance of impurities to the benefit of the T phase in the p,T-range of its stability. The experimental paths leading to almost pure T phase were established. Crystallographic, IR and Raman data related to the T phase are presented.
