Breathing mode inducing dynamical pairing in Kagome materials

Debmalya Chakraborty; Anushree Datta; Jorge Cayao

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arXiv · 2607.01052

Breathing mode inducing dynamical pairing in Kagome materials

Debmalya Chakraborty·Anushree Datta·Jorge Cayao

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Abstract

The breathing mode in Kagome materials is a structural modulation that breaks inversion symmetry and has been shown to be a crucial source for intriguing phases in the normal state. In this work, we carry out a full classification of superconducting symmetries in kagome superconductors and demonstrate the emergence of odd-frequency dynamical Cooper pairs entirely driven by the breathing mode. We then show that odd-frequency spin-singlet Cooper pairs can be realized by controlling the breathing mode in kagome lattices with conventional spin-singlet $s$-wave superconductivity. Since odd-frequency pairing is intrinsically nonlocal in time, our results put forward the breathing mode for designing dynamical Cooper pairs in kagome materials.

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Debmalya Chakraborty, Anushree Datta, Jorge Cayao. 2026-07-01. Breathing mode inducing dynamical pairing in Kagome materials. https://arxiv.org/abs/2607.01052

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