Successive single-q and double-q orders in an anisotropic XY model on the diamond structure: a model for quadrupole ordering in PrIr${}_2$Zn${}_{20}$

Kaito Sasa, Kazumasa Hattori

Quadrupole ordering with the ordering wavevector at the L points in PrIr${}_2$Zn${}_{20}$ under magnetic fields is analyzed using classical Monte Carlo simulations based on an effectiv…