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<p>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<sub>2</sub> 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.</p>

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Graphene-driven correlated electronic states in one dimensional defects within WS2

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月1日

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  • 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

摘要

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 WS2 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.