L-point quadrupole order under magnetic field in cubic PrIr${}_2$Zn${}_{20}$

Hitoko Okanoya, Kazumasa Hattori

We study quadrupole orders in heavy-fermion compound PrIr${}_2$Zn${}_{20}$ under magnetic fields on the basis of the Landau theory. Assuming $E_g$ electric quadrupolar orders in the cu…