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Reviews of topical problems


Study of layered superconductors in the theory of an electron — phonon coupling mechanism


Institute of Physics, National Academy of Sciences of Azerbaijan, prosp. H. Davida 33, Baku, 1143, Azerbaijan

We summarize a number of recent developments in the study of layered superconductors using the electron — phonon Eliashberg theory. The critical temperature of layered superconductors is calculated using the Eliashberg theory. The influence of nonadiabaticity effects on the critical temperature in layered superconductors is considered. The influence of Coulomb repulsion on the critical temperature is investigated in the case of an arbitrary thicknesses of conducting layers. Bardeen — Cooper — Schrieffer (BCS) equations for layered superconductors are used for the calculation of a specific heat jump, which is smaller than in the case of an isotropic BCS theory. The plasmon spectrum of layered superconductors with an arbitrary thicknesses of conducting layers is calculated. The influence of fluctuations in the order parameter phase on the critical temperature of layered superconductors is studied using the Ginzburg — Landau functional for the free energy. The results are shown to be in qualitative agreement with some experimen- tal data for cuprate superconductors and recently discovered MgB2.

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Fulltext is also available at DOI: 10.3367/UFNe.0179.200910a.1033
PACS: 74.20.−z, 74.70.Ad, 74.78.Fk (all)
DOI: 10.3367/UFNe.0179.200910a.1033
URL: https://ufn.ru/en/articles/2009/10/a/
000274503800001
2-s2.0-78650952534
2009PhyU...52..977A
Citation: Askerzade I N "Study of layered superconductors in the theory of an electron — phonon coupling mechanism" Phys. Usp. 52 977–988 (2009)
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Оригинал: Аскерзаде И Н «Исследование слоистых сверхпроводников в рамках теории с электрон-фононным механизмом спаривания» УФН 179 1033–1045 (2009); DOI: 10.3367/UFNr.0179.200910a.1033

References (87) Cited by (15) Similar articles (20) ↓

  1. M.V. Sadovskii “High-temperature superconductivity in iron-based layered compounds” 51 1201–1227 (2008)
  2. A.L. Ivanovskii “New high-temperature superconductors based on rare-earth and transition metal oxyarsenides and related phases: synthesis, properties, and simulations” 51 1229–1260 (2008)
  3. M.Yu. Kagan, V.A. Mitskan, M.M. Korovushkin “Anomalous superconductivity and superfluidity in repulsive fermion systems” 58 733–761 (2015)
  4. E.G. Maksimov “High-temperature superconductivity: the current state” 43 965–990 (2000)
  5. K.V. Mitsen, O.M. Ivanenko “Phase diagram of La2-xMxCuO4 as the key to understanding the nature of high-Tc superconductors” 47 493–510 (2004)
  6. A.S. Mishchenko “Electron — phonon coupling in underdoped high-temperature superconductors” 52 1193–1212 (2009)
  7. N.I. Kashirina, V.D. Lakhno “Large-radius bipolaron and the polaron-polaron interaction” 53 431–453 (2010)
  8. Yu.A. Izyumov, E.Z. Kurmaev “FeAs systems: a new class of high-temperature superconductors” 51 1261–1286 (2008)
  9. V.F. Khirnyi, A.A. Kozlovskii “Dynamic dissipative mixed states in inhomogeneous type II superconductors” 47 273–288 (2004)
  10. E.G. Maksimov, A.E. Karakozov “On nonadiabatic effects in phonon spectra of metals” 51 535–549 (2008)
  11. A.I. Akhiezer, V.V. Krasil’nikov et al “Theory of a superfluid Fermi liquid” 36 (2) 35–64 (1993)
  12. V.M. Svistunov, M.A. Belogolovskii, O.I. Chernyak “Tunnel investigations of metals at high pressures” 30 1–22 (1987)
  13. V.Z. Kresin, Yu.N. Ovchinnikov “‘Giant’ strengthening of superconducting pairing in metallic nanoclusters: large enhancement of Tc and potential for room-temperature superconductivity” 51 427–435 (2008)
  14. M.Yu. Kagan, A.V. Turlapov “BCS—BEC crossover, collective excitations, and hydrodynamics of superfluid quantum fluids and gases” 62 215–248 (2019)
  15. V.V. Val’kov, D.M. Dzebisashvili et al “Spin-polaron concept in the theory of normal and superconducting states of cuprates” 64 641–670 (2021)
  16. V.D. Lakhno “Pekar's ansatz and the strong coupling problem in polaron theory” 58 295–308 (2015)
  17. M.R. Trunin “Surface impedance of HTSC single crystals in the microwave band” 41 843–863 (1998)
  18. V.F. Elesin, Yu.V. Kopaev “Superconductors with excess quasiparticles” 24 116–141 (1981)
  19. B.T. Geilikman, V.Z. Kresin “Kinetic phenomena in superconductors” 12 620–640 (1970)
  20. V.F. Gantmakher, V.T. Dolgopolov “Localized-delocalized electron quantum phase transitions” 51 3–22 (2008)

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