Print Email Facebook Twitter Electronic Properties and Phase Transition in the Kagome Metal Yb0.5Co3Ge3 Title Electronic Properties and Phase Transition in the Kagome Metal Yb0.5Co3Ge3 Author Wang, Y. (TU Delft QN/Quantum Nanoscience; TU Delft QN/Ali Lab; Kavli institute of nanoscience Delft) McCandless, Gregory T. (Baylor University) Wang, Xiaoping (Oak Ridge National Laboratory) Thanabalasingam, Kulatheepan (Baylor University) Wu, H. (TU Delft QN/Quantum Nanoscience; TU Delft QN/Ali Lab; Kavli institute of nanoscience Delft) Bouwmeester, D. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) van der Zant, H.S.J. (TU Delft QN/Quantum Nanoscience; TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) Ali, M.N. (TU Delft QN/Quantum Nanoscience; TU Delft QN/Ali Lab; Kavli institute of nanoscience Delft) Chan, C.L. (Baylor University) Department QN/Quantum Nanoscience Date 2022 Abstract The Kagome lattice is an important fundamental structure in condensed matter physics for investigating the interplay of electron correlation, topology, and frustrated magnetism. Recent work on Kagome metals in the AV3Sb5 (A = K, Rb, and Cs) family has shown a multitude of correlation-driven distortions, including symmetry breaking charge density waves and nematic superconductivity at low temperatures. Here, we study the new Kagome metal Yb0.5Co3Ge3 and find a temperature-dependent kink in the resistivity that is highly similar to the AV3Sb5 behavior and is commensurate with an in-plane structural distortion of the Co Kagome lattice along with a doubling of the c-axis. The symmetry is lower below the transition temperature, with a breaking the in-plane mirror planes and C6 rotation, while gaining a screw axis along the c-direction. At very low temperatures, anisotropic negative magnetoresistance is observed, which may be related to anisotropic magnetism. This raises questions about the types of the distortions in Kagome nets and their resulting physical properties including superconductivity and magnetism. To reference this document use: http://resolver.tudelft.nl/uuid:70709533-f6c9-4e01-85c5-6a2bd1fab92e DOI https://doi.org/10.1021/acs.chemmater.2c01309 Embargo date 2023-02-02 ISSN 0897-4756 Source Chemistry of Materials, 34 (16), 7337-7343 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 Y. Wang, Gregory T. McCandless, Xiaoping Wang, Kulatheepan Thanabalasingam, H. Wu, D. Bouwmeester, H.S.J. van der Zant, M.N. Ali, C.L. Chan Files PDF acs.chemmater.2c01309taverne.pdf 2.77 MB Close viewer /islandora/object/uuid:70709533-f6c9-4e01-85c5-6a2bd1fab92e/datastream/OBJ/view