Theoretical modeling finds that dilute impurities in the loop-current phase of kagome metals generate switchable chiral QPI signals whose chirality tracks the Z3 nematicity set by loop-current order relative to the star-of-David CDW.
The enlarged unit cell contains twelve sublattices ( l = 1 ∼ 12)
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Origin of switchable quasiparticle-interference chirality in loop-current phase of kagome metals measured by scanning-tunneling-microscopy
Theoretical modeling finds that dilute impurities in the loop-current phase of kagome metals generate switchable chiral QPI signals whose chirality tracks the Z3 nematicity set by loop-current order relative to the star-of-David CDW.