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

TL;DR

This study investigates the magnetic properties of KBaRE(BO3)2 compounds with a triangular lattice of rare earth ions, revealing predominantly antiferromagnetic interactions and no magnetic ordering above 1.8 K, highlighting their potential for studying magnetic frustration.

Contribution

First comprehensive analysis of magnetic behavior in KBaRE(BO3)2 compounds, emphasizing their ideal 2D triangular lattice structure for frustration studies.

Findings

Display predominantly antiferromagnetic interactions

No magnetic ordering observed above 1.8 K

Potential as model systems for magnetic frustration

Abstract

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 lattice composed of rare earth ions. The samples were analyzed by x-ray diffraction and crystallize in the space group R-3m. Physical property measurements indicate the compounds display predominantly antiferromagnetic interactions between spins without any signs of magnetic ordering above 1.8 K. The ideal 2D rare earth triangular layers in this structure type make it a potential model system for investigating magnetic frustration in rare-earth-based materials.