TY - JOUR
T1 - Topological phases in the zeroth landau level of bilayer graphene
AU - Papić, Z.
AU - Abanin, D. A.
PY - 2014/1/28
Y1 - 2014/1/28
N2 - We analyze the phase diagram of the zeroth Landau level of bilayer graphene, taking into account the realistic effects of screening of the Coulomb interaction and strong mixing between two degenerate sublevels. We identify robust quantum Hall states at filling factors ν=-1, -43, -53, -85, -12 and discuss the nature of their ground states, collective excitations, and relation to the more familiar states in GaAs using a tractable model. In particular, we present evidence that the ν=-12 state is non-Abelian and described by either the Moore-Read wave function or its particle-hole conjugate, while ruling out other candidates such as the 331 state.
AB - We analyze the phase diagram of the zeroth Landau level of bilayer graphene, taking into account the realistic effects of screening of the Coulomb interaction and strong mixing between two degenerate sublevels. We identify robust quantum Hall states at filling factors ν=-1, -43, -53, -85, -12 and discuss the nature of their ground states, collective excitations, and relation to the more familiar states in GaAs using a tractable model. In particular, we present evidence that the ν=-12 state is non-Abelian and described by either the Moore-Read wave function or its particle-hole conjugate, while ruling out other candidates such as the 331 state.
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U2 - 10.1103/PhysRevLett.112.046602
DO - 10.1103/PhysRevLett.112.046602
M3 - Article
C2 - 24580475
AN - SCOPUS:84894486486
SN - 0031-9007
VL - 112
JO - Physical review letters
JF - Physical review letters
IS - 4
M1 - 046602
ER -