Paper of using HΦ is published ! 「Liquid-Liquid Transition in Kitaev Magnets Driven by Spin Fractionalization」

Liquid-Liquid Transition in Kitaev Magnets Driven by Spin Fractionalization

Joji Nasu, Yasuyuki Kato, Junki Yoshitake, Yoshitomo Kamiya, Yukitoshi Motome (arXiv:1610.07343, Phys. Rev. Lett. 118,137203 (2017))

In this paper, the authors show that the quantum phase transition occurs between Kitaev spin liquid and bond nematic spin liquid by introducing the Ising interactions in the Kitaev model. HΦ is used for calculating the finite-temperature properties of the extended Kitaev model.