Abstract
We report muon spin rotation (μSR) and neutron diffraction on the rare-earth-based magnets , also predicted as parent materials for two-dimensional (2D) derivatives, where the rare earth (RE) = Nd, Gd (only μSR), Tb, Dy, Ho, and Er. By crossing information between the two techniques, we determine the magnetic moment (), structure, and dynamic properties of all compounds. We find that only for RE = Nd and Gd the moments are frozen on a microsecond timescale. Out of these two, the most promising compound for a potential 2D high magnet is the Gd variant, since the parent crystals are pristine with , Néel temperature of , and the magnetic anisotropy between out-of- and in-plane coupling is smaller than . This result suggests that magnetic ordering in the Gd variant is dominated by in-plane magnetic interactions and should therefore remain stable when exfoliated into 2D sheets.
2 More- Received 21 September 2021
- Accepted 8 November 2021
- Corrected 6 December 2021
DOI:https://doi.org/10.1103/PhysRevB.104.174440
©2021 American Physical Society
Physics Subject Headings (PhySH)
Corrections
6 December 2021
Correction: A second affiliation was added for the 12th author. The author list in Ref. [16] contained an error and has been set right.