Spin-wave analysis for Kagome-triangular spin system and coupled spin tubes: low-energy excitation for the cuboc order

Abstract

The coupled spin tube system, which is equivalent to a stacked Kagome-triangular spin system, exhibits the cuboc order -- a non-coplanar spin order with a twelve-sublattice structure accompanying spontaneous breaking of the translational symmetry -- in the Kagome-triangular plane. On the basis of the spin-wave theory, we analyze spin-wave excitations of the planar Kagome-triangular spin system, where the geometric phase characteristic to the cuboc spin structure emerges. We further investigate spin-wave excitations and dynamical spin structure factors for the coupled spin tubes, assuming the staggered cuboc order.

8 pages, 8 figures, typos fixed

References in corpus (7)

• Twelve sublattice ordered phase in the J1-J2 model on the kagome lattice
• Quantum phase transitions of the asymmetric three-leg spin tube
• Low-lying excitations of the three-leg spin tube using the density-matrix renormalization group method
• Chirality and $Z_2$ vortices in an Heisenberg spin model on the kagomé lattice
• Quantum spin nanotubes -- frustration, competing orders and criticalities
• Kagome-Triangular Lattice Antiferromagnet NaBa2Mn3F11
• Magnetic phase diagram of the coupled triangular spin tubes for CsCrF4

Cited by in corpus (1)

• Phase Transitions for Cuboc Orders in Stacked Kagome Heisenberg Systems