Barun Ghosh

The role of magnetic impurities in shaping superconductivity and electronic order in kagome metals remains unresolved. Now, a study reveals anisotropic Kondo resonances intertwined with the superconducting gap in a magnetically doped kagome superconductor.

1 Introduction The QAHE is a novel topological phenomenon that can lead to dissipationless electrical conductance from the associated chiral edge states [1-3]. So far, it has only been realized in ferromagnetic systems [4-20], which often exhibit low Curie temperatures, and the ferromagnetic domains responsible for the QAHE make them vulnerable to stray magnetic fields. Unlike FMs, the AFMs are inherently robust against stray magnetic fields.

Research Article CONDENSED MATTER PHYSICS INTRODUCTION In a crystalline solid, the quantum metric and the Berry curvature together constitute the complex quantum geometry of the Bloch wave functions (1). The quantum metric measures the gauge-invariant “distance” between Bloch wave functions at different momenta, whereas the Berry curvature characterizes the change in the phase of the Bloch wave functions along a closed contour in the Brillouin zone (BZ).