High-temperature terahertz optical diode effect without magnetic order in polar FeZnMo${}_3$O${}_8$

Shukai Yu, Bin Gao, Jae Wook Kim +5

We present a terahertz spectroscopic study of polar ferrimagnet FeZnMo${}_3$O${}_8$. Our main finding is a giant high-temperature optical diode effect, or nonreciprocal directional dic…