AI Article Synopsis
- - The paper discusses the discovery of a new family of rare-earth-based honeycomb-lattice magnets called BaRE(SiO) (RE = Ho-Yb), which have a unique crystal structure and strong magnetic properties.
- - These materials exhibit strong antiferromagnetic interactions and do not show any magnetic order even at very low temperatures (down to 2 K), indicating potential for a Kitaev quantum spin liquid state.
- - BaYb(SiO) single crystals show significant magnetic frustration, making them a promising candidate for further research into exotic magnetic phases related to Kitaev materials.
Article Abstract
Rare-earth (RE)-based honeycomb-lattice materials with strong spin-orbit coupled = 1/2 moments have attracted great interest as a platform to realize the Kitaev quantum spin liquid (QSL) state. Herein, we report the discovery of a family of RE-based honeycomb-lattice magnets BaRE(SiO) (RE = Ho-Yb), which crystallize into the rhombohedral structure with the space group 3̅. In these serial compounds, magnetic RE ions are arranged on a perfect honeycomb lattice within the -plane and stacked in the "ABCABC"-type fashion along the -axis. All synthesized BaRE(SiO) (RE = Ho-Yb) polycrystals exhibit the dominant antiferromagnetic interaction and absence of magnetic order down to 2 K. In combination with the magnetization and electron spin resonance results, magnetic behaviors are discussed for the compounds with different RE ions. Moreover, the as-grown BaYb(SiO) single crystals show large magnetic frustration with frustration index = θ/ > 8 and no long-range magnetic ordering down to 0.15 K, being a possible QSL candidate material. These series of compounds are attractive for exploring the exotic magnetic phases of Kitaev materials with 4f electrons.
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| http://dx.doi.org/10.1021/acs.inorgchem.3c01693 | DOI Listing |
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