Ground-State Phase Diagram of Frustrated Antiferromagnetic S=1 Chain with Uniaxial Single-Ion-Type Anisotropy

摘要: The ground-state phase diagram of a frustrated S = 1 Heisenberg spin chain with uniaxial single-ion-type anisotropy is studied using the infinite-system density-matrix renormalization-group method. Particular attention paid to “chiral” phases, in which long-range order parameter vector chirality. It found that, addition Haldane, large-D (LD), and double-Haldane includes three different chiral i.e., gapless chiral, chiral-Haldane, chiral-LD phases. These phases are distinguished from each other by energy gap string order.