Field-induced Kitaev multipolar liquid in spin-orbit coupled $d^{2}$ honeycomb Mott insulators
Abstract
The Kitaev model, characterized by bond-dependent Ising spin interactions among spin-orbit entangled dipole moments in Mott insulators, offered a new approach to quantum spin liquids. Motivated by another type of bond-dependent interaction among quadrupole moments in Mott insulators, we provide a microscopic route to uncover the Kitaev multipolar liquid, featuring fractionalized excitations out of non-Kramers doublets carrying multipole moments. The key ingredient is the magnetic field that allows for bond-anisotropic quadrupole-octupole interactions via mixing with the excited triplet states. The conditions to realize signatures of this phase in real materials are also discussed.
Keywords
Cite
@article{arxiv.2206.10647,
title = {Field-induced Kitaev multipolar liquid in spin-orbit coupled $d^{2}$ honeycomb Mott insulators},
author = {Ahmed Rayyan and Derek Churchill and Hae-Young Kee},
journal= {arXiv preprint arXiv:2206.10647},
year = {2023}
}
Comments
main text: 5 pages, 4 figures; supplementary material: 14 pages, 16 figures; journal edition