Magnetic orders proximal to the Kitaev limit in frustrated triangular systems: Application to Ba 3 IrTi 2 O 9

  title={Magnetic orders proximal to the Kitaev limit in frustrated triangular systems: Application to Ba 3 IrTi 2 O 9},
  author={Andrei Catuneanu and Jeffrey G. Rau and Heung-Sik Kim and Hae Young Kee},
  journal={Physical Review B},
Frustrated transition-metal compounds in which spin-orbit coupling (SOC) and electron correlation work together have attracted much attention recently. In the case of $5d$ transition metals, where SOC is large, ${j}_{\text{eff}}=1/2$ bands near the Fermi level are thought to encompass the essential physics of the material, potentially leading to a concrete realization of exotic magnetic phases such as the Kitaev spin liquid. Here, we derive a spin model on a triangular lattice based on ${j}_… 

Figures from this paper

Kitaev materials
Comprehensive study of the global phase diagram of the J−K−Γ model on a triangular lattice
The celebrated Kitaev honeycomb model provides an analytically tractable example with an exact quantum spin liquid ground state. While in real materials, other types of interactions besides the
Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models
Compounds of transition metal ions with strong spin-orbit coupling recently attracted attention due to the possibility to host frustrated bond-dependent anisotropic magnetic interactions. In general,
Structural, electronic, and magnetic properties of nearly ideal Jeff=12 iridium halides
Heavy transition metal magnets with $J_{\rm eff}$ $=$ 1/2 electronic ground states have attracted recent interest due to their penchant for hosting new classes of quantum spin liquids and
Z2 vortices in the ground states of classical Kitaev-Heisenberg models
The classical nearest neighbor Kitaev-Heisenberg model on the triangular lattice is known to host $\mathbb{Z}_2$ spin-vortices forming a crystalline superstructure in the ground state. The
Persistent low-temperature spin dynamics in the mixed-valence iridate Ba 3 InIr 2 O 9
Using thermodynamic measurements, neutron diffraction, nuclear magnetic resonance, and muon spin relaxation, we establish putative quantum spin-liquid behavior in Ba$_3$InIr$_2$O$_9$, where unpaired
Unconventional magnetism in the 4d4 -based S=1 honeycomb system Ag3LiRu2O6
We have investigated the thermodynamic and local magnetic properties of the Mott insulating system Ag$_{3}$LiRu$_{2}$O$_{6}$ containing Ru$^{4+}$ (4$d$$^{4}$) for novel magnetism. The material
PhD Thesis: Searching for an emergent SU(4) symmetry in real materials
The enhancement of the spin-space symmetry from the usual $\mathrm{SU}(2)$ to $\mathrm{SU}(N)$ with $N>2$ is promising for finding nontrivial quantum spin liquids, but the realization of
Magnon damping in the zigzag phase of the Kitaev-Heisenberg- Γ model on a honeycomb lattice
Author(s): Smit, RL; Keupert, S; Tsyplyatyev, O; Maksimov, PA; Chernyshev, AL; Kopietz, P | Abstract: We calculate magnon dispersions and damping in the Kitaev-Heisenberg model with an off-diagonal
Emergent SU(4) Symmetry in α-ZrCl_{3} and Crystalline Spin-Orbital Liquids.
A new mechanism by which SU(4) symmetry emerges in the strong spin-orbit coupling limit of α-ZrCl_{3}=3/2 quartets is proposed, and crystalline spin-orbital liquids protected by this emergent SU( 4) symmetry and space group symmetries are proposed.