I-U-2 Phonon Effects on Superconducting Phase in Two-Chain Electron Systems

Kenji Yonemitsu

[Physica C 282, 1109 (1997)]

The scaling analysis based on a continuous model shows that superconductivity in a two-band system is broken by sufficiently strong couplings with 2kF and 4kF phonons at quarter filling. Three-dimensionality makes the system an antiferromagnet if the nesting is still perfect and the particle-hole channel becomes dominant in the low-energy limit.


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