{'fraction_non_alphanumeric': 0.02595797280593325, 'fraction_numerical': 0.004944375772558714, 'mean_word_length': 4.785714285714286, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
The liquid - glass transition in n-propanol: the pressure dependence of the Brillouin spectra

The liquid - glass transition in n-propanol has been investigated in detail by measuring the pressure dependence of the Brillouin scattering spectra. Using a home-made Brillouin microscope equipped with a diamond anvil cell, backward-geometry spectra were measured as a function of pressure from 1 atm to 8.3 GPa. As the pressure increased, the Brillouin shift changed its slope from 5 GPa, at which the liquid - glass transition is induced. The experimental data were analysed using a spectral function based on the theory of viscoelasticity and the Vinet equation of state. This yielded the pressure dependences of the limiting zero- and infinite-frequency sound velocities, the relaxation time, and the density.