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arXiv · 2412.20647

Microscopic theory of pair density waves in spin-orbit coupled Kondo lattice

Aaditya Panigrahi·Alexei Tsvelik·Piers Coleman
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Abstract

We demonstrate that the discommensuration between the Fermi surfaces of a conduction sea and an underlying spin liquid provides a natural mechanism for the spontaneous formation of pair density waves. Using a recent formulation of the Kondo lattice model which incorporates a Yao Lee spin liquid proposed by the authors, we demonstrate that doping away from half-filling induces finite-momentum electron-Majorana pair condensation, resulting in amplitude-modulated PDWs. Our approach provides a precise, analytically tractable pathway for understanding the spontaneous formation of PDWs in higher dimensions and offers a natural mechanism for PDW formation in the absence of a Zeeman field.

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Aaditya Panigrahi, Alexei Tsvelik, Piers Coleman. 2024-12-30. Microscopic theory of pair density waves in spin-orbit coupled Kondo lattice. https://doi.org/10.1103/pdqz-zb8k

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