2014/03/17 by R. Ganesh, G. Baskaran, Jeroen van den Brink +1 · 2 citations
Materials Science · Physics and Astronomy · #2D Materials and Applications #Computer science #Condensed matter physics #Iron-based superconductors research #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconductivity #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.113.177001
published as Phys. Rev. Lett. 113, 177001 (2014) · 4 pages + Supplementary Material
arxiv created 2014/03/17 · openalex publication_date 2014/10/20 · arxiv updated 2015/02/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Bulk TiSe2 is an intrinsically layered transition metal dichalcogenide hosting both superconducting and charge-density-wave ordering. Motivated by the recent progress in preparing two-dimensional transition metal dichalcogenides, we study these frustrated orderings in a single trilayer of TiSe2. Using a renormalization group approach, we find that electronic correlations can give rise to charge-density-wave order and two kinds of superconductivity. One possible superconducting state corresponds to unconventional s(+-) pairing. The other is particularly exciting as it is chiral, breaking time-reversal symmetry. Its stability depends on the precise strength and screening of the electron-electron interactions in two-dimensional TiSe2.