Electronic correlations stabilizing time-reversal broken chiral superconductivity in single-trilayer TiSe${}_2$

Abstract

Bulk TiSe${}_2$ is an intrinsically layered transition metal dichalcogenide (TMD) hosting both superconducting and charge density wave (CDW) ordering. Motivated by the recent progress in preparing two-dimensional TMDs, we study these frustrated orderings in {\it single} trilayer of TiSe${}_2$ within a renormalization group approach. We establish that a novel state with time-reversal symmetry broken chiral superconductivity can emerge from the strong competition between CDW formation and superconductivity. Its stability depends on the precise strength and screening of the electron-electron interactions in two-dimensional TiSe${}_2$.

4 pages + Supplementary Material

References in corpus (3)

• Non-Abelian Anyons and Topological Quantum Computation
• Magnetism, superconductivity, and pairing symmetry in Fe-based superconductors
• Is Sr2RuO4 a Chiral P-Wave Superconductor?

Cited by in corpus (5)

• Bogoliubov Fermi surfaces in superconductors with broken time-reversal symmetry
• Molecular beam epitaxy growth and scanning tunneling microscopy study of TiSe${}_2$ ultrathin films
• Charge-density wave induced by combined electron-electron and electron-phonon interactions in 1$T$-TiSe${}_2$: A variational Monte Carlo study
• Anomalous diamagnetic response in multi-band superconductors with time-reversal broken symmetry
• Impurity induced current in a Chern insulator