New paper: Ground-state properties of Na2IrO3 determined from ...

Tsuyoshi Okubo, Kazuya Shinjo, Youhei Yamaji, Naoki Kawashima, Shigetoshi Sota, Takami Tohyama, and Masatoshi Imada,
Ground-state properties of Na₂IrO₃ determined from an ab initio Hamiltonian and its extensions containing Kitaev and extended Heisenberg interactions, Phys. Rev. B 96, 054434 (2017).