activity
20112025
most citedHidden symmetries of the extended Kitaev-Heisenberg model: Implications for honeycomb lattice iridates A2IrO3

200 citations · 519 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.str-el2025★ 2 cited

Orbital Order and Superconductivity in Bilayer Nickelate Compounds

Giniyat Khaliullin, Jiří Chaloupka

We propose a theory for bilayer nickelate materials, where a large tetragonal field - intrinsic or induced by epitaxial strain - lifts the orbital degeneracy and localizes the $3z^…

cond-mat.str-el2020★ 87 cited

Proximate ferromagnetic state in the Kitaev model material -RuCl

H. Suzuki, H. Liu, J. Bertinshaw +17

-RuCl is a major candidate for the realization of the Kitaev quantum spin liquid, but its zigzag antiferromagnetic order at low temperatures indicates deviations from the…

cond-mat.str-el2019★ 56 cited

Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models

Juraj Rusnačko, Dorota Gotfryd, Jiří Chaloupka

Compounds of transition metal ions with strong spin-orbit coupling recently attracted attention due to the possibility to host frustrated bond-dependent anisotropic magnetic intera…

cond-mat.str-el2016★ 137 cited

Magnetic anisotropy in the Kitaev model systems Na2IrO3 and RuCl3

Jiří Chaloupka, Giniyat Khaliullin

We study the ordered moment direction in the extended Kitaev-Heisenberg model relevant to honeycomb lattice magnets with strong spin-orbit coupling. We utilize numerical diagonaliz…

cond-mat.str-el2015★ 200 cited

Hidden symmetries of the extended Kitaev-Heisenberg model: Implications for honeycomb lattice iridates A2IrO3

Jiří Chaloupka, Giniyat Khaliullin

We have explored the hidden symmetries of a generic four-parameter nearest-neighbor spin model, allowed in honeycomb lattice compounds under trigonal compression. Our method utiliz…

cond-mat.str-el2011★ 37 cited

Spin-orbital resonating valence bond liquid on a triangular lattice: Evidence from finite-cluster diagonalization

Jiří Chaloupka, Andrzej M. Oleś

We investigate the ground state of the spin-orbital model for triply degenerate orbitals on a triangular lattice which unifies intrinsic frustration of spin and orbi…