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Superconductivity of Fullerenes Doped with Alkali Metals
Author(s) -
Davydov A. S.
Publication year - 1992
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221720133
Subject(s) - fullerene , superconductivity , pairing , alkali metal , planar , radius , doping , condensed matter physics , crystal (programming language) , phonon , electron , materials science , chemical physics , chemistry , physics , quantum mechanics , computer graphics (images) , computer security , computer science , programming language
The properties of the alkali‐metal‐doped fullerene C 60 are discussed. It was shown that a superconductivity of this crystal is determined by a quasi‐one‐dimensional spreading of a planar bisolation condensate. The condensate is formed when the energy of the electron–phonon interaction exceeds the energy of the one‐dimensional zeor vibrations caused by local pairing. Under very strong electronphonon interaction small‐radius, spherically symmetric bisolitons are created instead of planar bisolitons. Their formation needs overcoming of a potential barrier. The localized bisolitions are moving through the crystal by a hopping mechanism only.