Charge-transfer polarization wave in the high-Tc oxides and its relevance to superconducting pairing

B. K. Chakraverty

doi:10.1103/PhysRevB.41.6321

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Charge-transfer polarization wave in the high-Tc oxides and its relevance to superconducting pairing

B. K. Chakraverty

DOI 10.1103/PhysRevB.41.6321 · Physical Review B

T1

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Abstract

We develop the idea of a charge-transfer polarization wave in the high-Tc oxides as high-frequency bosons originating from the long-range dipole-dipole interaction in the CuO2 planes. The dispersion relationships of the longitudinal and transverse polarization waves are derived in three and two dimensions, and the coupling of the longitudinal wave to the carriers leading to superconductive pairing is calculated. The superconducting gap equation is solved in the adiabatic (ωboson<ɛF) and in the antiadiabatic (ωboson>ɛF) regime in the weak-coupling case. In the latter situation superconductivity can be thought as arising from dielectric bipolarons.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown