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Dislocation motion in solid Helium-4
We have shown that the shear modulus of Helium-4 single crystals is highly reduced in one particular direction if their dislocations are free to move. This "Giant... -
Metastable solid helium-4 below its melting pressure
In 1969, it was suggested that atomic vacancies could form a Bose condensate in solid helium-4, which would cause the solid to have superfluid properties. This...
