Issues

 / 

2008

 / 

May

  

Reviews of topical problems


‘Giant’ strengthening of superconducting pairing in metallic nanoclusters: large enhancement of Tc and potential for room-temperature superconductivity

 a,  b, c
a Lawrence Berkeley Laboratory, University of California, Berkeley, California, USA
b Landau Institute for Theoretical Physics, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 119334, Russian Federation
c Max-Planck Institute of the Physics of Complex Systems, Dresden, Germany

In relation to the recently intensified search for new superconducting systems, it is interesting to study the properties of metal nanoclusters containing ~ 102-103 free carriers. It is essential that the spectra of delocalized electrons in many clusters form energy shells similar to those in atoms and nuclei. The superconducting pairing can be very strong if the cluster parameters satisfy certain conditions. Such clusters constitute a new family of high-temperature superconductors (with Tc ≥ 150 K). Transition into the superconducting state is manifested in an essential rearrangement of the energy spectrum. Pair correlation affects the optical, magnetic, and thermodynamic properties of clusters; corresponding changes can be detected in specific experiments. Clusters can form high-temperature superconducting tunneling networks, and this leads to macroscopic high-temperature superconductivity. In principle, higher values of Tc, up to room temperature, may be achieved.

Fulltext pdf (244 KB)
Fulltext is also available at DOI: 10.1070/PU2008v051n05ABEH006531
PACS: 36.40.−c, 74.70.−b, 74.78.Na (all)
DOI: 10.1070/PU2008v051n05ABEH006531
URL: https://ufn.ru/en/articles/2008/5/a/
000259376200001
2-s2.0-51549104305
2008PhyU...51..427K
Citation: Kresin V Z, Ovchinnikov Yu N "'Giant' strengthening of superconducting pairing in metallic nanoclusters: large enhancement of Tc and potential for room-temperature superconductivity" Phys. Usp. 51 427–435 (2008)
BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Кресин В З, Овчинников Ю Н «„Гигантское“ усиление сверхпроводящего спаривания в металлических нанокластерах: сильное увеличение температуры перехода и возможность сверхпроводимости при комнатной температуре» УФН 178 449–458 (2008); DOI: 10.3367/UFNr.0178.200805a.0449

References (68) Cited by (63) Similar articles (20) ↓

  1. G.N. Makarov “Cluster temperature. Methods for its measurement and stabilizationPhys. Usp. 51 319–353 (2008)
  2. G.N. Makarov “Spectroscopy of single molecules and clusters inside helium nanodroplets. Microscopic manifestation of 4He superfluidityPhys. Usp. 47 217–247 (2004)
  3. B.M. Smirnov “Generation of cluster beamsPhys. Usp. 46 589–628 (2003)
  4. G.N. Makarov “The spectroscopy of clusters by intense pulses of VUV radiation from free electron lasersPhys. Usp. 52 461–486 (2009)
  5. G.N. Makarov “Experimental methods for determining the melting temperature and the heat of melting of clusters and nanoparticlesPhys. Usp. 53 179–198 (2010)
  6. G.N. Makarov “Selective processes of IR excitation and dissociation of molecules in gasdynamically cooled jets and flowsPhys. Usp. 48 37–76 (2005)
  7. R.S. Berry, B.M. Smirnov “Phase transitions in various kinds of clustersPhys. Usp. 52 137–164 (2009)
  8. G.N. Makarov “Kinetic methods for measuring the temperature of clusters and nanoparticles in molecular beamsPhys. Usp. 54 351–370 (2011)
  9. V.P. Krainov, B.M. Smirnov, M.B. Smirnov “Femtosecond excitation of cluster beamsPhys. Usp. 50 907–931 (2007)
  10. P.V. Kashtanov, B.M. Smirnov, R. Hippler “Magnetron plasma and nanotechnologyPhys. Usp. 50 455–488 (2007)
  11. G.N. Makarov “Laser IR fragmentation of molecular clusters: the role of channels for energy input and relaxation, influence of surroundings, dynamics of fragmentationPhys. Usp. 60 227–258 (2017)
  12. V.F. Gantmakher, V.T. Dolgopolov “Superconductor-insulator quantum phase transitionPhys. Usp. 53 1–49 (2010)
  13. M.Yu. Kagan, K.I. Kugel’ “Inhomogeneous charge distributions and phase separation in manganitesPhys. Usp. 44 553–570 (2001)
  14. B.I. Belevtsev “Superconductivity and localization of electrons in disordered two-dimensional metal systemsSov. Phys. Usp. 33 (1) 36–54 (1990)
  15. G.N. Makarov “Studies on high-intensity pulsed molecular beams and flows interacting with a solid surfacePhys. Usp. 46 889–914 (2003)
  16. B.M. Smirnov “Processes in expanding and condensing gasesPhys. Usp. 37 621–657 (1994)
  17. Yu.A. Izyumov, E.Z. Kurmaev “FeAs systems: a new class of high-temperature superconductorsPhys. Usp. 51 1261–1286 (2008)
  18. G.N. Makarov “Control of the parameters and composition of molecular and cluster beams by means of IR lasersPhys. Usp. 61 617–644 (2018)
  19. K.V. Mitsen, O.M. Ivanenko “Phase diagram of La2-xMxCuO4 as the key to understanding the nature of high-Tc superconductorsPhys. Usp. 47 493–510 (2004)
  20. E.L. Nagaev “Small metal particlesSov. Phys. Usp. 35 (9) 747–782 (1992)

The list is formed automatically.

© 1918–2024 Uspekhi Fizicheskikh Nauk
Email: ufn@ufn.ru Editorial office contacts About the journal Terms and conditions