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arXiv · 1305.3171

Phase transformations in methanol at high pressure measured by dielectric spectroscopy technique

M. V. Kondrin·A. A. Pronin·Y. B. Lebed·V. V. Brazhkin
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Abstract

Dielectric response in methanol measured in wide pressure and temperature range ($P < 6.0$ GPa; 100 K $ $ 1.2 GPa $T < 270$ K. In the intermediate P-T region $P \approx 3.4-3.7$ GPa $T \approx 260-280$ K a set of complicated structural transformations occurs involving four methanol crystalline structures. At higher pressures within a narrow range $P \approx 4.3-4.5$ GPa methanol can be obtained in the form of fragile glass ($T_g \approx 200$ K, $m_p \approx 80$ at $P= 4.5$ GPa) by relatively slow cooling.

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M. V. Kondrin, A. A. Pronin, Y. B. Lebed, V. V. Brazhkin. 2013-05-14. Phase transformations in methanol at high pressure measured by dielectric spectroscopy technique. https://doi.org/10.1063/1.4819330

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