A‑Site and Epitaxial Strain Effect on the Properties of AMn3Sb5 (A = K, Cs, and Rb) Kagome Lattices
Andrés Camilo García Castro, Wilfredo Ibarra Hernández
TL;DR
This paper studies the effects of A-site and strain on the properties of AMn3Sb5 Kagome lattices, revealing large anomalous Hall conductivity and stable ferromagnetism.
Contribution
The study introduces new insights into the role of A-site and strain in stabilizing magnetic and electronic properties of Kagome lattices.
Findings
The AMn3Sb5 family is dynamically stable with ferromagnetic ground-state configuration.
Out-of-plane ferromagnetism breaks T-symmetry, enabling large anomalous Hall conductivity.
CsMn3Sb5 shows σxy up to 442 S·cm–1 under +3% in-plane strain.
Abstract
Kagome lattices are an exciting family of compounds where frustrated magnetism, superconductivity, charge density wave (CDW) orders, topological features, large anomalous Hall conductivity, flat bands, and van Hove singularities collide. With this in mind, we theoretically studied the Mn-based Kagome AMn3Sb5 (A = K, Rb, and Cs) lattices and explored the A-site’s influence, as well as the epitaxial xy-strain effect on the structural, magnetic, and electronic properties. Through theoretical analysis, coupled with first-principles density functional theory calculations, we demonstrate that the entire family is dynamically stable, locking the ferromagnetic order as the ground-state configuration in the primitive cell and preventing charge-density wave condensation, as observed in the AV3Sb5 family. In these compounds, our results suggest an out-of-plane ferromagnetic response that, in turn,…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20
Figure 21
Figure 22
Figure 23Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsTopological Materials and Phenomena · Advanced Condensed Matter Physics · 2D Materials and Applications