Europium mixed-valence, long-range magnetic order, and dynamic magnetic response in EuCu${}_2$(Si${}_x$Ge${}_{1-x}$)${}_2$

Kirill S. Nemkovski, Denis P. Kozlenko, Pavel A. Alekseev +9

In mixed-valence or heavy-fermion systems, the hybridization between local $f$ orbitals and conduction band states can cause the suppression of long-range magnetic order, which com…