Giant Magnetoelectric Effect in HoAl_3(BO_3)_4

K. -C. Liang, R. P. Chaudhury, B. Lorenz +4

A giant magnetoelectric polarization is found in HoAl${}_3$(BO${}_3$)${}_4$. The polarization in transverse field geometry at 70 kOe reaches 3600 $\mu C/m^2$ which is significantly higher t…