Funct. Mater. 2016; 23 (3): 364-369.
Electron gas pressure in pure metals and metal superconductors
Institute for Single Crystals, STC "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Nauky Ave., 61001 Kharkiv, Ukrane
The pressure of gas of non-interacting electrons P0 at T~=0K in metals and metal superconductors in the normal and superconducting states, is determined. Found are the dependences of the critical temperature of superconductors on such a pressure and the relation between P0 and the energy of the ground state of the atoms in the Hartree-Fock approximation. The temperature dependences of P0 and other parameters of metal superconductors in superconducting state, are studied. The possibility and conditions of emergence of superconductivity at room temperature are established on the base of the model of non-interacting electrons. Shown is the common nature of energy gap in superconductors and exchange energy of spin-orbital interactions between nucley of ions and "super-conducting" electrons.
1. S.Fluge, Practical Quantum Mechanics, Springer, Freiburg (1971).
2. C.Kittel, Introduction to Solid State Physics, John Wiley, New York (1978).
3. N.W.Ashcroft, N.D.Mermin, Solid State Physics, Holt, New York (1979).
4. V.F.Khirnyi, Fiz. Nizk. Temp., 41, 1126 (2015).
5. V.F.Khirnyi, Functional Materials, 21, 399 (2014).
http://dx.doi.org/10.15407/fm21.04.399
6. Modern Techniques in Computational Chemistry, MOTECC, 1991, ed. by E.Clementi, ESCOM-III, Leiden:North-Holland (1991), v.91.
7. B.T.Matthias, in: Prog. Low. Temp. Phys., Amsterdam. North-Holland 1, 11 (1957).
8. B.I.Bertjaev, I.I.Reut, Izvestija Samarskogo Nauchnogo Centra RAN, 12, 70 (2010).
9. A.Abrikosov, I.Khalatnikov, Fizika Nizkikh Temperatur. Prilozhenie., Moskow, Mir, 1964.
10. C.J.Gorter, in: Prog. Low. Temp. Phys., v.1, Amsterdam, North-Holland (1955).
11. J.G.Bednorz, K.A.Muller, Z. Phys. B. 64, 189 (1986).
http://dx.doi.org/10.1007/BF01303701
12. S.V.Vonsobskii, Magnetizm, Nauka, Moscow (1971) [in Russian].
13. N.F.Mott, E.A.Devis, Electronic Process in Non-crystalline Materials, Clarendon, Oxford (1971).