Antiferromagnetic Correlations in Strongly Valence Fluctuating CeIrSn
Antiferromagnetic Correlations in Strongly Valence Fluctuating CeIrSn
CeIrSn with a quasikagome Ce lattice in the hexagonal basal plane is a strongly valence fluctuating compound, as we confirm by hard x-ray photoelectron spectroscopy and inelastic neutron scattering, with a high Kondo temperature of $T_{\mathrm{K}}\sim 480$\,K. We report a negative in-plane thermal expansion $\alpha/T$ below 2\,K, which passes through …