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Tunable magnetism in titanium-based kagome metals by rare-earth engineering and high pressure
- Source :
- Communications Materials, Vol 5, Iss 1, Pp 1-9 (2024)
- Publication Year :
- 2024
- Publisher :
- Nature Portfolio, 2024.
-
Abstract
- Abstract Rare-earth engineering is an effective way to introduce and tune magnetism in topological kagome materials, which have been acting as a fertile platform to investigate the quantum interactions between geometry, topology, spin, and correlation. Here, we report the synthesis, structure, and physical properties of titanium-based kagome metals RETi3Bi4 (RE = Yb, Pr, and Nd) with various magnetic states. They all crystallize in the orthogonal space group Fmmm (No. 69), featuring distorted titanium kagome lattices and rare-earth zig-zag chains. By changing the rare earth atoms in the zig-zag chains, the magnetism can be tuned from nonmagnetic YbTi3Bi4 to short-range ordered PrTi3Bi4 (T anomaly ~ 8.2 K), and finally to ferromagnetic NdTi3Bi4 (T c ~ 8.5 K). In-situ resistance measurements of NdTi3Bi4 under high pressure further reveal a tunable ferromagnetic ordering temperature. These results highlight RETi3Bi4 as a promising family of kagome metals to explore nontrivial band topology and exotic phases.
- Subjects :
- Materials of engineering and construction. Mechanics of materials
TA401-492
Subjects
Details
- Language :
- English
- ISSN :
- 26624443
- Volume :
- 5
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Communications Materials
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.8b0962b41d564e7da8b6ca3c9017ebf8
- Document Type :
- article
- Full Text :
- https://doi.org/10.1038/s43246-024-00513-4