Phenomenological Theory of Superfluidity and Superconductivity

Details Phenomenological Theory of Superfluidity and Superconductivity Phenomenological Theory of Superfluidity and Superconductivity

2001-04-03

arxiv.org/abs/cond-mat/0104059v1

Int.J.Theor.Phys. 33 (1994) 389-399

Physics

Condensed Matter

Superconductivity

14 pages, 1 table, 0 figures

Scientific paper

Quantum condensation is used here as the basis for a phenomenological theory of superfluidity and superconductivity. It leads to remarkably good calculations of the transition temperatures T c of superfluid 3 He and 4 He, as well as a large number of cuprate, heavy fermion, organic, dichalcogenide, and bismuth oxide super- conductors. Although this approach may apply least to the long coherence length metallics, reasonably good estimates are made for them, and chevral superconductors. T c for atomic H is estimated. T c can be calculated as a function of number density or density of states, and effective mass of normal carriers; or alternatively with the Fermi energy as the only input parameter. Predictions are made for a total of 26 superconductors and 4 superfluids. An estimate is also made for coherence lengths.

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