Continuous pressure-induced valence and magnetic transitions in EuMnSb2

This is the authors' abstract. We don't add key points for this paper.

EuMnSb₂ is a unique material platform to realize magnetic control of topological quasiparticles. The authors employ here external pressure as a tuning mechanism to investigate the valence and magnetic properties through a series of synchrotron x-ray diffraction and spectroscopy techniques. They find a continuous valence change accompanied by a large increase in the magnetic ordering temperature in the Eu sublattice. This enhancement is likely due to the reduced Eu ion distance and increased 4f-5d orbital mixing.