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Extremely large magnetoresistance in nodal-net semimetal with kagome lattice
Phys. Rev. Research 7, 023265 – Published 16 June, 2025
DOI: https://doi.org/10.1103/8v2l-6t7k
Abstract
Materials with a kagome lattice naturally host topological electronic structures, giving rise to many intriguing quantum states within this family. In this study, we performed calculations of the electronic structure and Fermi surface, and measured the longitudinal resistivity , Hall resistivity , and quantum oscillations of the magnetization as a function of temperature and magnetic field for , a kagome-lattice material. We observed an unsaturated extremely large magnetoresistance of 14 500% at 2 K and 9 T, the highest reported in kagome lattice materials, which was attributed to the carrier compensation supported by the Hall resistivity measurements. The band structure calculations, along with the observation of nontrivial Berry phases in the de Haas–van Alphen oscillations, demonstrate that is a topological nodal-net (Hopf link) semimetal.
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