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Thermal expansion of compressed He II

✍ Scribed by R.L Mills; S.G Sydoriak


Publisher
Elsevier Science
Year
1965
Tongue
English
Weight
814 KB
Volume
34
Category
Article
ISSN
0003-4916

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Phonon-roton model for compressed He II
✍ R.L Mills πŸ“‚ Article πŸ“… 1965 πŸ› Elsevier Science 🌐 English βš– 781 KB

The separate phonon and roton entropies are s \_ 2r2k4T3 ph--, 45fl3q3p and (3) where Ic, fi, p, and T have their usual meanings, cl is the velocity of first sound at absolute zero, and A, po , and P are parameters of energy, momentum, and effective mass, respectively, which charact.erize the rot