Journal
PHYSICAL REVIEW LETTERS
Volume 126, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.026801
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Funding
- Swedish Research Council (VR)
- Wallenberg Academy Fellows program of the Knut and Alice Wallenberg Foundation
- National Natural Science Foundation of China [11974014]
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Twisted double bilayer graphene is predicted to be a versatile platform for realizing fractional Chern insulators at high temperatures, without the need for an external magnetic field, by tuning the gate potential and twist angle.
We predict twisted double bilayer graphene to be a versatile platform for the realization of fractional Chern insulators readily targeted by tuning the gate potential and the twist angle. Remarkably, these topologically ordered states of matter, including spin singlet Halperin states and spin polarized states in Chern number C = 1 and C = 2 bands, occur at high temperatures and without the need for an external magnetic field.
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