Designing topological and correlated 2D magnetic states via superatomic lattice constructions of zirconium dichloride

Magnetic materials could realize the intriguing quantum anomalous Hall effect and metal-to-insulator transition when combined with band topology or electronic correlation, which have broad prospects in quantum information, spintronics, and valleytronics. Here, we propose the approach of designing no...

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Bibliographic Details
Published in:Nano research 2023-12, Vol.16 (12), p.13509-13515
Main Authors: Song, Yang, Dong, Wen-Han, Hao, Kuan-Rong, Du, Shixuan, Zhang, Lizhi
Format: Article
Language:English
Subjects:
Antiferromagnetism
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Chemistry and Materials Science
Condensed Matter Physics
Configurations
Correlation
Dichlorides
Electromagnetism
Ferromagnetism
First principles
Graphene
Honeycomb construction
Kagome lattice
Magnetic materials
Materials Science
Nanotechnology
Phase transitions
Quantum Hall effect
Quantum phenomena
Research Article
Spintronics
Stoichiometry
Topology
Triangles
Zirconium
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Summary:Magnetic materials could realize the intriguing quantum anomalous Hall effect and metal-to-insulator transition when combined with band topology or electronic correlation, which have broad prospects in quantum information, spintronics, and valleytronics. Here, we propose the approach of designing novel two-dimensional (2D) magnetic states via d -orbital-based superatomic lattices. Specifically, we chose triangular zirconium dichloride disks as superatoms to construct the honeycomb superatomic lattices. Using first-principles calculations, we identified a series of 2D magnetic states with varying sizes of superatoms. We found the non-uniform stoichiometries and geometric effect of superatomic lattice give rise to spin-polarized charges arranged in different magnetic configurations, containing ferromagnetic coloring triangles, antiferromagnetic honeycomb, and ferromagnetic kagome lattices. Attractively, these magnetic states are endowed with nontrivial band topology or strong correlation, forming an ideal Chern insulator or antiferromagnetic Dirac Mott insulator. Our work not only reveals the potential of d -orbital-based superatoms for generating unusual magnetic configurations, but also supplies a new avenue for material engineering at the nanoscale.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-023-6066-3