Abstract
A system of self-consistent integral equations for the superconducting gap is formulated and solved taking account of the instability of the normal phase of bilayer cuprates against charge-density waves. The critical parameters are calculated as a function of the wave vector, temperature, and doping index. It is found that the region in which superconductivity coexists with d-type charge-density waves depends strongly on the doping index. The effective energy-gap parameter, determined as the interval between the peaks of the density of states, can have a local minimum at temperatures T<T c .
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Pis’ma Zh. Éksp. Teor. Fiz. 68, No. 7, 583–587 (10 October 1998)
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Eremin, M.V., Larionov, I.A. Characteristic features of d pairing in bilayer cuprates under conditions of Peierls instability of the normal phase. Jetp Lett. 68, 611–615 (1998). https://doi.org/10.1134/1.567916
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DOI: https://doi.org/10.1134/1.567916