AI 中文总结
研究菱面体石墨烯系统，发现其在特定条件下有维格纳晶体相等丰富电子相，在面外磁场下存在竞争态，这些新兴相紧密相连且在相界连续演化，揭示了WC相在相图中的重要作用及与其他相的联系。
AI 中文摘要
菱面体石墨烯系统提供了一个独特平台，在低载流子密度和高位移场下，强电子相互作用和非平凡能带拓扑共存，产生丰富的新兴电子相景观。本文报道了菱面体五层石墨烯（R5G）中手性超导低密度侧的高绝缘态对应于维格纳晶体（WC）相。此外，在WC边界附近出现空穴掺杂金属维格纳晶体（h-mWC）相。在面外磁场下，系统存在竞争的磁场稳定超导（fSC）和非常规重入量子霍尔（RIQH）态这些新兴相紧密连接到潜在的WC和mWC态，并在相界处连续演化。结果表明WC相在菱面体多层石墨烯相图中起重要作用，并突出其与丰富新兴相景观的联系。
英文摘要
Rhombohedral graphene systems provide a unique platform where strong electronic interactions and nontrivial band topology coexist at low carrier densities and high displacement fields, giving rise to a rich landscape of emergent electronic phases. Here, we report that the highly insulating state on the low-density side of chiral superconductivity in rhombohedral pentalayer graphene (R5G) corresponds to a Wigner crystal (WC) phase. In addition, a hole-doped metallic Wigner crystal (h-mWC) phase emerges near the WC boundary. Under an out-of-plane magnetic field, the system hosts competing magnetic-field-stabilized superconductivity (fSC) and unconventional reentrant quantum Hall (RIQH) states. These emergent phases are closely connected to the underlying WC and mWC states and evolve continuously across phase boundaries. Our results establish that WC phase plays an important role in the phase diagram of rhombohedral multilayer graphene and highlight its connection to a rich landscape of emergent phases.
