CDW induced structural symmetry breaking in Kagome metal FeGe
ORAL
Abstract
Charge-ordered phases in kagome metals have garnered much recent attention owing to their highly interesting properties. Recently, CDW order within the antiferromagnetic (AFM) ordered phase of the kagome metal FeGe has attracted attention [1-4]. Here, we further investigate this compound using high-resolution dilatometry techniques. Our results suggest a symmetry breaking of the hexagonal in-plane structure at the onset of the CDW transition. Detailed heat-capacity measurements find a clear anomaly at the spin-canting phenomenon [2] slightly below the CDW transition. These results offers us an opportunity to further explore the charge order in this FeGe kagome metallic system.
[1] T. Neupertet,et al. Nat. Phys. 18, 137–143 (2022)
[2] X. Tenget et al. . Nature 609, 490–495 (2022)
[3] J.-X. Yin, et al. Phys. Rev. Lett. 129, 166401 (2022)
[4] C. Setty, et al. arXiv:2203.01930
[1] T. Neupertet,et al. Nat. Phys. 18, 137–143 (2022)
[2] X. Tenget et al. . Nature 609, 490–495 (2022)
[3] J.-X. Yin, et al. Phys. Rev. Lett. 129, 166401 (2022)
[4] C. Setty, et al. arXiv:2203.01930
*Work at KIT was partially funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - TRR 288-422213477 (project A02).
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Presenters
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Liran Wang
- Karlsruhe Institute of Technology
- IQMT, Karlsruhe Institute of Technology, Germany