Anomalous metal and superconducting phases in rhombohedral graphene.

Rhombohedral graphene on WSe2 exhibits both zero-resistance superconducting and finite-resistance anomalous metal phases within the same system, revealing complex electronic behavior.

• Why it matters: Understanding the coexistence of superconductivity and finite resistance is crucial for unraveling unconventional electronic states and advancing quantum materials research, as these phenomena challenge existing theories.
• What they did: The study systematically mapped gate-tuned phases in rhombohedral graphene, identifying isolated pockets of zero-resistance superconductivity and finite-resistance states, and examined their response to magnetic fields and temperature.
• The result: Findings show that finite-resistance states resemble the anomalous metal phase, offering a reproducible, tunable platform that constrains extrinsic explanations and deepens insight into this longstanding, poorly understood phenomenon.