Enhanced pairing mechanism in cuprate-type crystals
Maximilian Duell, Christian Hainzl, Eman Hamza
DOI 10.1103/PhysRevB.106.054509 · Physical Review B
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Abstract
Using a BCS mean-field approach, we show how the interplay between low-momentum optical phonons and Jahn-Teller-type lattice distortions can open an attractive channel that allows the formation of pairs with the corresponding density exhibiting characteristic features of a pair-density wave. We demonstrate this numerically on a copper-oxide-type lattice.
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