Orbital pairing effects in fullerenes

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Journal of Superconductivity

DOI:https://doi.org/10.1007/BF01320870· OSTI ID:106853

Kusmartsev, F V ^[1]

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1. L.D. Landau Institute for Theoretical Physics, Moscow (Russian Federation)

The authors propose a theory of superconductivity for a crystal having multiple band structure. The theory is valid for the parameter {delta}(k{sub F})/{h_bar}{omega} {much_lt} 1 when the splitting between bands {delta}(k{sub F}) is small in comparison with the phonon frequency {h_bar}{omega}. The theory may be applicable to the doped fullerenes where it is widely supposed that pairing occurs through high-energy intramolecular phonons. As in semiconductors, the bunch of bands is treated by ascribing the highest spin to electrons. The authors derive the analytic expression for the critical temperature, which strongly depends on the value of the total spin of the Cooper pair, which may be equal to Y = 0, 1, .... In all cases the order parameter is a vector with components proportional to spherical harmonics at the same time the superconducting gap has no zeros. The data may be fitted to doped fullerenes, if the superconductivity arises from d-pairing.

• Sponsoring Organization: USDOE
• OSTI ID: 106853
• Journal Information: Journal of Superconductivity, Journal Name: Journal of Superconductivity Journal Issue: 5 Vol. 7; ISSN JOUSEH; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
COOPER PAIRS
ENERGY GAP
FULLERENES
ORDER PARAMETERS
SUPERCONDUCTIVITY
TRANSITION TEMPERATURE