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Showing 1 to 1 of 1 for “"high-density phases (solids)"”.
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X-ray diffraction study of the high-density phases of solid 4He
At low densities the helium solids are highly quantum in nature, with the small atomic mass and weak interactive forces giving rise to large vibrational motions of the atoms about their mean lattice sites. While these distances can be as much as 25 % of the nearest-neighbor distance at the lowest …