Pd intercalation above x=0.02 suppresses the a-CDW in ErTe3, with residual diffuse scattering at q=(0.29,0,0) arising from partial phonon softening of the c-CDW due to nearly equal wave-vector magnitudes.
This includes superlattice peaks of a long- range ordered CDW although these are about three or- ders of magnitude less intense than fundamental Bragg peaks in RTe3 [13]
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Evolution of charge-density-wave soft phonon modes in $\mathrm{Pd}_x\mathrm{ErTe}_3$
Pd intercalation above x=0.02 suppresses the a-CDW in ErTe3, with residual diffuse scattering at q=(0.29,0,0) arising from partial phonon softening of the c-CDW due to nearly equal wave-vector magnitudes.