A half-filling fractional quantum Hall state at ν_tot = -1/2 in decoupled twisted double bilayer graphene transitions from a two-component Halperin (331) state to a one-component non-Abelian state under displacement field.
1/3 and 2/3 states can be observed on both side ofν tot = -1, as indicated by the red dashed lines in Fig.4(a)
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Half state at $\nu_{tot}$ = -1/2 and its transition in Decoupled Twisted Double Bilayer Graphene
A half-filling fractional quantum Hall state at ν_tot = -1/2 in decoupled twisted double bilayer graphene transitions from a two-component Halperin (331) state to a one-component non-Abelian state under displacement field.