Polarized Raman spectroscopy reveals ubiquitous E2g phonon degeneracy lifting but distinct polarization dependences in collective CDW excitations across CsV3Sb5, RbV3Sb5, and KV3Sb5.
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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.
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Distinct lattice and charge excitations in AV3Sb5 kagome superconductors
Polarized Raman spectroscopy reveals ubiquitous E2g phonon degeneracy lifting but distinct polarization dependences in collective CDW excitations across CsV3Sb5, RbV3Sb5, and KV3Sb5.
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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.