Abstract
A thermodynamic transition in C60 crystals, subjected beforehand to uniaxial compression at various temperatures and to thermal action, was investigated by differential scanning calorimetry. It was established that compression of the crystal at temperatures below the phase transition has a much smaller effect on the transition itself than a similar or even much weaker action at a temperature above the phase transition. A “quenching” effect was also found. This effect is probably due to the orientational order of individual fullerene molecules. A correlation was established between the magnitude of the effect and the preliminary deformation of C60 crystals.
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Fiz. Tverd. Tela (St. Petersburg) 41, 550–553 (March 1999)
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Egorov, V.M., Nikolaev, V.I., Smirnov, B.I. et al. Effect of low-temperature compression on the parameters of the phase transition at 250–260 K in C60 single crystals. Phys. Solid State 41, 494–496 (1999). https://doi.org/10.1134/1.1130810
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DOI: https://doi.org/10.1134/1.1130810