Magnetic phase diagram of a frustrated ferrimagnetic ladder: Relation to the one-dimensional boson Hubbard model

Abstract

We study the magnetic phase diagram of two coupled mixed-spin $(1,1/2)$ Heisenberg chains as a function of the frustration parameter related to diagonal exchange couplings. The analysis is performed by using spin-wave series and exact numerical diagonalization techniques. The obtained phase diagram--containing the Luttinger liquid phase, the plateau phase with a magnetization per rung $M=1/2$, and the fully polarized phase--is closely related to the generic $(J/U,\mu /U)$ phase diagram of the one-dimensional boson Hubbard model.

4 pages, 2 figures

References in corpus (3)

• Magnetic phase diagram of the S=1/2 antiferromagnetic zigzag spin chain in the strongly frustrated region: cusp and plateau
• Thermodynamic properties of ferromagnetic mixed-spin chain systems
• Ferrimagnetic mixed-spin ladders in weak and strong coupling limits

Cited by in corpus (1)

• Magnetization plateau as a result of the uniform and gradual electron doping in a coupled spin-electron double-tetrahedral chain