First Order Preemptive Ising-nematic Transition in K${}_5$Fe${}_4$Ag${}_6$Te${}_{10}$

N. Giles-Donovan, Y. Chen, H. Fukui +11

Employing inelastic X-ray scattering and neutron scattering techniques, we observed nematic and magnetic phase transitions with distinct characters in K${}_5$Fe${}_4$Ag${}_6$Te$_{1…