SciPost Physics Core

SciPost Phys. Core 3, 004 (2020) · published 4 September 2020

• doi: 10.21468/SciPostPhysCore.3.1.004
• pdf
• BiBTeX
• RIS
• Submissions/Reports
• 

Abstract

We study the rare-earth magnets on a honeycomb lattice, and are particularly interested in the experimental consequences of the highly anisotropic spin interaction due to the spin-orbit entanglement. We perform a high-temperature series expansion using a generic nearest-neighbor Hamiltonian with anisotropic interactions, and obtain the heat capacity, the parallel and perpendicular spin susceptibilities, and the magnetic torque coefficients. We further examine the electron spin resonance linewidth as an important signature of the anisotropic spin interactions. Due to the small interaction energy scale of the rare-earth moments, it is experimentally feasible to realize the strong-field regime. Therefore, we perform the spin-wave analysis and study the possibility of topological magnons when a strong field is applied to the system. The application and relevance to the rare-earth Kitaev materials are discussed.

• Luo et al., Interplay of magnetic field and trigonal distortion in the honeycomb Γ model: Occurrence of a spin-flop phase
  Phys. Rev. B 105, 174435 (2022) [Crossref]
• Nasu, Majorana quasiparticles emergent in Kitaev spin liquid
  , ptad115 (2023) [Crossref]
• Ye et al., Canted antiferromagnetic order and spin dynamics in the honeycomb-lattice compound Tb2Ir3Ga9
  Phys. Rev. B 103, 184413 (2021) [Crossref]
• Sichelschmidt et al., Electron spin resonance study on the 4f honeycomb quantum magnet YbCl3
  J. Phys.: Condens. Matter 35, 425601 (2023) [Crossref]
• Khatua et al., Magnetic properties of a spin-orbit entangled Jeff  =  12 honeycomb lattice
  Phys. Rev. B 108, 054442 (2023) [Crossref]
• Kim et al., Spin-orbital entangled state and realization of Kitaev physics in 3d cobalt compounds: a progress report
  J. Phys.: Condens. Matter 34, 023001 (2022) [Crossref]
• Ji et al., Rare-Earth Chalcohalides: A Family of van der Waals Layered Kitaev Spin Liquid Candidates
  Chinese Phys. Lett. 38, 047502 (2021) [Crossref]
• Sala et al., Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice
  Nat Commun 12, 171 (2021) [Crossref]
• Huang et al., Spiral spin liquid behavior and persistent reciprocal kagome structure in frustrated van der Waals magnets and beyond
  Phys. Rev. Research 4, 013121 (2022) [Crossref]
• Jang et al., Computational design of f -electron Kitaev magnets: Honeycomb and hyperhoneycomb compounds A2PrO3 ( A= alkali metals)
  Phys. Rev. Materials 4, 104420 (2020) [Crossref]
• Zhang et al., Anisotropic exchange coupling and ground state phase diagram of Kitaev compound YbOCl
  Phys. Rev. Research 4, 033006 (2022) [Crossref]
• Shakhova et al., Compound-tunable embedding potential method: analysis of pseudopotentials for Yb in YbF2, YbF3, YbCl2 and YbCl3 crystals
  Phys. Chem. Chem. Phys. 24, 19333 (2022) [Crossref]
• Polash et al., Electron spin resonance in emerging spin-driven applications: Fundamentals and future perspectives
  10, 041301 (2023) [Crossref]