Magnetism in the KBaRE(BO3)2 (RE=Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) series: materials with a triangular rare earth lattice

摘要

We report the magnetic properties of compounds in the KBaRE(BO3)2 family (RE=Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb), materials with a planar triangular latticecomposed of rare earth ions. The samples were analyzed by x-ray diffraction andcrystallize in the space group R-3m. Physical property measurements indicatethe compounds display predominantly antiferromagnetic interactions betweenspins without any signs of magnetic ordering above 1.8 K. The ideal 2D rareearth triangular layers in this structure type make it a potential model systemfor investigating magnetic frustration in rare-earth-based materials.