We track the evolution of charge correlations in the kagome superconductor CsV3Sb5 as its parent, long-ranged charge density order is destabilized. Upon hole-doping doping, interlayer charge correlations rapidly become short-ranged and their periodicity is reduced by half along the interlayer direction. Beyond the peak of the first superconducting dome, the parent charge density wave state vanishes and incommensurate, quasi-1D charge correlations are stabilized in its place. These competing, unidirectional charge correlations demonstrate an inherent electronic rotational symmetry breaking in CsV3Sb5, independent of the parent charge density wave state and reveal a complex landscape of charge correlations across the electronic phase diagram of this class of kagome superconductors. Our data suggest an inherent 2kf charge instability and the phenomenology of competing charge instabilities is reminiscent of what has been noted across several classes of unconventional superconductors.
@article{arxiv.2207.10608,
title = {Incommensurate charge-stripe correlations in the kagome superconductor CsV$_3$Sb$_{5-x}$Sn$_x$},
author = {Linus Kautzsch and Yuzki M. Oey and Hong Li and Zheng Ren and Brenden R. Ortiz and Ram Seshadri and Jacob Ruff and Ziqiang Wang and Ilija Zeljkovic and Stephen D. Wilson},
journal= {arXiv preprint arXiv:2207.10608},
year = {2023}
}