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<p>Multilayer graphene with different stacking sequences has emerged as a powerful setting for correlated and topological phases. In parallel, progress in graphene heterostructures with magnetic or correlated materials–most notably the Kitaev candidate <i>α</i>&#xa0;−&#xa0;RuCl<sub>3</sub>–has demonstrated charge transfer, magnetic proximity effects, and interfacial reconstruction, creating new opportunities for engineered quantum systems. Motivated by these developments, we explore a three-dimensional analog in which <i>α</i>&#xa0;−&#xa0;RuCl<sub>3</sub> layers are inserted directly into the van der Waals gaps of graphite, forming an intercalated system. Here, we report the successful synthesis and comprehensive characterization of graphite intercalated with <i>α</i>&#xa0;−&#xa0;RuCl<sub>3</sub>. Using a combination of X-ray diffraction, quantum oscillation measurements, scanning transmission electron microscopy and first-principles electronic structure calculations, we study the structural and electronic properties of this intercalated crystals. Our results demonstrate that graphite intercalated with <i>α</i>&#xa0;−&#xa0;RuCl<sub>3</sub> offers a robust route to develop three-dimensional materials with access to novel correlated and topological states.</p>

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α−RuCl3 intercalated into graphite as three-dimensional platform for exotic quantum phases

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月10日

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  • Aleksandar Razpopov,
  • Shirin Mozaffari,
  • Takahiro Matsuoka,
  • Matthew Cothrine,
  • Nan Huang,
  • Miaofang Chi,
  • Roser Valentí,
  • David Mandrus

摘要

Multilayer graphene with different stacking sequences has emerged as a powerful setting for correlated and topological phases. In parallel, progress in graphene heterostructures with magnetic or correlated materials–most notably the Kitaev candidate α − RuCl3–has demonstrated charge transfer, magnetic proximity effects, and interfacial reconstruction, creating new opportunities for engineered quantum systems. Motivated by these developments, we explore a three-dimensional analog in which α − RuCl3 layers are inserted directly into the van der Waals gaps of graphite, forming an intercalated system. Here, we report the successful synthesis and comprehensive characterization of graphite intercalated with α − RuCl3. Using a combination of X-ray diffraction, quantum oscillation measurements, scanning transmission electron microscopy and first-principles electronic structure calculations, we study the structural and electronic properties of this intercalated crystals. Our results demonstrate that graphite intercalated with α − RuCl3 offers a robust route to develop three-dimensional materials with access to novel correlated and topological states.