Dynamics of magnetization in frustrated spin-chain systems: Ca${}_3$Co${}_2$O${}_6$

Abstract

The magnetization dynamics of the triangular lattice of Ising spin chains is investigated in the framework of a two-dimensional model. The rigid chains are assumed to interact with the nearest neighboring chains, an external magnetic field, and a heat reservoir that causes the chains to change their states randomly with time. A probability of a single spin-flip process is assumed in a Glauber-like form. This technique allows describing properly the steps in the magnetization curves observed in Ca${}_3$Co${}_2$O${}_6$ and their dependence on a magnetic field sweep rate and temperature. A transition from a low-temperature to high-temperature phase is also observed.

3.5 pages, 3 figures, submitted to PRB

References in corpus (5)

• Step-like magnetization in a spin-chain system: Ca3Co2O6
• Specific heat and magnetization study on single crystals of a frustrated, quasi one-dimensional oxide: Ca3Co2O6
• The Origin of Magnetic Interactions in Ca3Co2O6
• Partial antiferromagnetism in spin-chain Sr5Rh4O12, Ca5Ir3O12 and Ca4IrO6 single crystals
• Magnetic structure and phase diagram in a spin-chain system: Ca${}_3$Co${}_2$O${}_6$

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• Field-driven magnetisation steps in Ca3Co2O6: A single-crystal neutron-diffraction study
• Magnetic and magnetocaloric properties of quasi-one-dimensional Ising spin chain CoV${}_2$O${}_6$
• Magnetic behavior of nano crystals of a spin-chain system, Ca3Co2O6: Absence of multiple steps in the low temperature isothermal magnetization
• The competing spin orders and fractional magnetization plateaus of classical Heisenberg model on Shastry-Sutherland lattice: Consequence of long-range interactions
• Reaching the equilibrium state of frustrated triangular Ising magnet Ca3Co2O6
• Modifications in the frustrated magnetism, oxidation state of Co and magnetoelectric coupling effects induced by a partial replacement of Ca by Gd in the spin chain compound Ca3Co2O6
• Low-temperature metastable states in a stacked triangular Ising antiferromagnet
• Ashkin-Teller criticality and weak-first-order behavior of phase transition to four-fold degenerate state in two-dimensional frustrated Ising antiferromagnets
• Magnetic field-induced deformation of the spin-density wave microphases in Ca${}_3$Co${}_2$O${}_6$
• Thermodynamic and critical properties of an antiferromagnetically stacked triangular Ising antiferromagnet in a field
• The origin of fine structure in magnetization curve of $\alpha$-CoV${}_2$O${}_6$
• Novel dielectric anomalies due to spin-chains above and below Neel temperature in Ca3Co2O6