Graphene-driven correlated electronic states in one dimensional defects within WS2
- Antonio Rossi
- John C. Thomas
- Johannes T. Küchle
- Elyse Barré
- Zhuohang Yu
- Da Zhou
- Shalini Kumari
- Hsin-Zon Tsai
- Ed Wong
- Chris Jozwiak
- Aaron Bostwick
- Joshua A. Robinson
- Mauricio Terrones
- Archana Raja
- Adam Schwartzberg
- D. Frank Ogletree
- Jeffrey B. Neaton
- Michael F. Crommie
- Francesco Allegretti
- Willi Auwärter
- Eli Rotenberg
- Alexander Weber-Bargioni
2025-07-01
Tomonaga-Luttinger liquid (TLL) behavior in one-dimensional systems has been predicted and shown to occur at semiconductor-to-metal transitions within two-dimensional materials. Reports of one-dimensional defects hosting a Fermi liquid or a TLL have suggested a dependence on the underlying substrate, however, unveiling the physical details of electronic contributions from the substrate require cross-correlative investigation. Here, we study TLL formation within defectively engineered WS 2 atop graphene, where band structure and the atomic environment is visualized with nano angle-resolved photoelectron spectroscopy, scanning tunneling microscopy and spectroscopy, and non-contact atomic force microscopy. Correlations between the local density of states and electronic band dispersion elucidated the electron transfer from graphene into a TLL hosted by one-dimensional metal (1DM) defects. It appears that the vertical heterostructure with graphene and the induced charge transfer from graphene into the 1DM is critical for the formation of a TLL.