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Competition of Density Waves and Superconductivity in Twisted Tungsten Diselenide
- Source :
- Phys. Rev. Research 5, L012034, Published 10 March 2023
- Publication Year :
- 2022
-
Abstract
- Evidence for correlated insulating and superconducting phases around regions of high density of states was reported in the strongly spin-orbit coupled van-der Waals material twisted tungsten diselenide (tWSe$_2$). We investigate their origin and interplay by using a functional renormalization group approach that allows to describe superconducting and spin/charge instabilities in an unbiased way. We map out the phase diagram as function of filling and perpendicular electric field, and find that the moir\'e Hubbard model for tWSe$_2$ features mixed-parity superconducting order parameters with $s/f$-wave and topological $d/p$-wave symmetry next to (incommensurate) density wave states. Our work systematically characterizes competing interaction-driven phases in tWSe$_2$ beyond mean-field approximations and provides guidance for experimental measurements by outlining the fingerprint of correlated states in interacting susceptibilities.<br />Comment: 7 pages, 3 figures, supplemental material
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Research 5, L012034, Published 10 March 2023
- Publication Type :
- Report
- Accession number :
- edsarx.2204.00648
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevResearch.5.L012034