Research Highlight

Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite

Antiferromagnets on kagome lattices are among the most interesting materials in the field of highly frustrated magnetism. We have studied a material that has, according to our density functional theory based energy mapping, a kagome lattice with a very interesting distortion. Classical calculations arrive at a phase diagram which contains, besides three ordered phases, a large classical spin liquid phase. The material Y-kapellasite which motivated the study and led to the discovery of this phase diagram is situated in a non-collinar coplanar ordered phase, in agreement with experiment.

M. Hering, F. Ferrari, A. Razpopov, I. I. Mazin, R. Valenti, H. O. Jeschke, J. Reuther

npj Comput. Mater. 8, 10 (2022) <https://doi.org/10.1038/s41524-021-00689-0>