TY  - JOUR
AU  - Simeth, W.
AU  - Rahn, M. C.
AU  - Bauer, A.
AU  - Meven, Martin
AU  - Pfleiderer, C.
TI  - Topological aspects of multi-k antiferromagnetism in cubic rare-earth compounds
JO  - Journal of physics / Condensed matter
VL  - 36
IS  - 21
SN  - 0953-8984
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2024-05283
SP  - 215602 -
PY  - 2024
AB  - We advertise rare-earth intermetallics with high-symmetry crystal structures and competing interactions as a possible materials platform hosting spin structures with non-trivial topological properties. Focusing on the series of cubic RCu compounds, where R = Ho, Er, Tm, the bulk properties of these systems display exceptionally rich magnetic phase diagrams hosting an abundance of different phase pockets characteristic of antiferromagnetic order in the presence of delicately balanced interactions. The electrical transport properties exhibit large anomalous contributions suggestive of topologically non-trivial winding in the electronic and magnetic structures. Neutron diffraction identifies spontaneous long-range magnetic order in terms of commensurate and incommensurate variations of (ππ0) antiferromagnetism with the possibility for various multi-k configurations. Motivated by general trends in these materials, we discuss the possible existence of topologically non-trivial winding in real and reciprocal space in the class of RCu compounds including antiferromagnetic skyrmion lattices. Putatively bringing together different limits of non-trivial topological winding in the same material, the combination of properties in RCu systems promises access to advanced functionalities.
LB  - PUB:(DE-HGF)16
C6  - 38295434
UR  - <Go to ISI:>//WOS:001175754100001
DO  - DOI:10.1088/1361-648X/ad24bb
UR  - https://juser.fz-juelich.de/record/1030410
ER  -