The quantum Hall effect has had a profound impact on solid-state physics and has been investigated using different two-dimensional systems, including graphene. Here, the authors investigate graphene encapsulated by a ferroelectric insulator, CuInP2S6, where they observe a quantum Hall effect that endures over a wide temperature range in relatively modest magnetic fields.
- Anubhab Dey
- Nathan Cottam
- Amalia Patanè