Anomalous Hall Effect in Uranium-based Kondo semimetal

The combination of strong correlation and band structure topology is an exciting avenue to search for new quantum phases. Topological states have been extensively studied in Kondo Insulators within the past decade, showing that Kondo systems are highly versatile platforms to explore the effect of topology in strongly correlated systems. Multiple Uranium based compounds have been proposed as candidates, due to 5f-electrons participating towards large spin-orbit coupling. Through electric transport measurements on a Uranium based semimetal, with a non-centrosymmetric lattice, we observe a large spontaneous hall effect rooted in Weyl nodes pinned to the Fermi level due to the Kondo interaction, giving a non-zero berry curvature. This system exhibits large Kondo Coherence temperature, providing vast energy domain for studying the effect of strong correlations in non-trivial topological environment.