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Showing 1 to 1 of 1 for “"phonon pressure"”.
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Thermal vacancies in hcp helium-4
… to measure the temperature dependence of the pressure in twenty crystals between 18.17 and 20.9 cm3/mole. Absolute lattice parameters at low temperatures were measured for many of these crystals. The temperature dependence of the relative lattice parameter was measured in selected crystals. …