Rare earth single-ion anisotropy and the magnetic structures of the RTiO3 perovskites: R = Tb, Dy, Ho, Er and Tm

Attention is drawn to common features in the magnetic structures of the isostructural RMO3 phases where R = Tb, Dy, Ho, Er and Tm and M = Al, Ti, Cr, Fe and Co. The orientation of the rare earth magnetic moment with respect to the orthorhombic c-axis depends only on R. For R = Er and Tm the moments are parallel to the c-axis while for R = Tb, Dy and Ho they lie in the a-b plane. The in-plane moments are canted with respect to the a and b axes …