The quantum spin liquid (QSL) state has been searched intensively in Kitaev-like materials, such as the Iridium oxides A2IrO3 and α-RuCl3. The half-filled Kitaev-Hubbard model with bond dependent hopping terms is used to describe the Kitaev-like materials, which is calculated using the state-of-the-art fermionic projected entangled pair states (fPEPS) method. We find a QSL phase near the Mott insulator transition, which has a strong first-order transition to the semi-metal phase with the decrease of Hubbard U. We suggest that a promising routine to find the QSL is to find the Iridium oxides that are near the Mott insulator transitions.
@article{arxiv.2210.01996,
title = {A quantum spin liquid phase in the Kitaev-Hubbard model},
author = {Shaojun Dong and Hao Zhang and Chao Wang and Meng Zhang and Yong-Jian Han and Lixin He},
journal= {arXiv preprint arXiv:2210.01996},
year = {2022}
}