Electric field enhances ring exchange relative to Heisenberg interactions, shifting the CSL phase boundary to smaller t/U in the ring exchange model on the triangular lattice.
2 1 + α2 cos2 θ1 (1 − α2 cos2 θ1)3 − 5α2 cos2 θ1 + 1 (1 − 4α2 cos2 θ1) (1 − α2 cos2 θ1)2 # (B16) J(1) r (θ) = 8t4 U3
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Electric field control of a quantum spin liquid in weak Mott insulators
Electric field enhances ring exchange relative to Heisenberg interactions, shifting the CSL phase boundary to smaller t/U in the ring exchange model on the triangular lattice.