Annealing tuned charge-density-wave order in the Kagome metal FeGe

ORAL

Abstract

Kagome metals have garnered much recent attention owing to their highly unconventional properties that can lead to the emergence of intriguing quantum phases [1]. For example, the kagome materials AV3Sb5 (A = K, Rb, Cs) [2] host an intriguing interplay between unconventional superconductivity and charge-density-waves (CDW). Recently a CDW was discovered in the antiferromagnetically ordered kagome metal FeGe [3-5]. Recent works demonstrate that the CDW in FeGe can be influenced strongly by post-growth annealing treatments [6]. Here, we investigate a series of post annealed FeGe crystals using the high-resolution dilatometry, calorimetry and magnetization measurements, as well as by single crystal x-ray diffraction.

1. T. Neupertet,et al. Nat. Phys. 18, 137–143 (2022)

2. F. Mehdi, et al. arXiv:2310.06102

3. X. Tenget et al. . Nature 609, 490–495 (2022)

4. Jia-Xin Yin, et al. Phys. Rev. Lett. 129, 166401 (2022)

5. C. Setty, et al. arXiv:2203.01930

6. X. Wu, et al. arXiv:2308.01291v1

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Presenters

  • Liran Wang

    Institut für QuantenMaterialien und Technologien, Karlsruhe Institute of Technology

Authors

  • Liran Wang

    Institut für QuantenMaterialien und Technologien, Karlsruhe Institute of Technology

  • Frederic Hardy

    Karlsruhe Institute of Technology, Institut für QuantenMaterialien und Technologien, Karlsruhe Institute of Technology

  • Michael Merz

    Karlsruhe Institute of Technology, Institut für QuantenMaterialien und Technologien, Karlsruhe Institute of Technology

  • Christoph Meingast

    Karlsruhe Institute of Technology, IQMT, Karlsruhe Institute of Technology, Institut für QuantenMaterialien und Technologien, Karlsruhe Institute of Technology

  • Xinrun Mi

    Low Temperature Physics Lab, College of Physics & Center of Quantum Materials and Devices, Chongqing University

  • Xintong Chen

    Low Temperature Physics Lab, College of Physics & Center of Quantum Materials and Devices, Chongqing University

  • Mingquan He

    Chongqing University, Low Temperature Physics Lab, College of Physics & Center of Quantum Materials and Devices, Chongqing University

  • Xueliang Wu

    Low Temperature Physics Lab, College of Physics & Center of Quantum Materials and Devices, Chongqing University

  • Yisheng Chai

    Low Temperature Physics Lab, College of Physics & Center of Quantum Materials and Devices, Chongqing University

  • Aifeng Wang

    Low Temperature Physics Lab, College of Physics & Center of Quantum Materials and Devices, Chongqing University