Magnetization Process of (S= 3/2,S= 1) Anisotropic Ferrimagnetic Spin Chain

The phase diagram of the anisotropic Spin-1 Heisenberg Chain

The spin s quantum spin chain and the alternating s 1 , s 2 spin chain with boundaries

The spin s quantum spin chain and the alternating s1, s2 (s1 − s2 = 12) spin chain with boundaries are considered. The scattering of their excitations with the boundaries via the Bethe ansatz method is studied, and the exact boundary S matrices are computed in the limit s, s1,2 → ∞. Moreover, the connection of these models with the SU(2) Principal Chiral, WZW and the RSOS models is discussed. e...

semiclassical description of anisotropic non-heisenberg magnets for spin s=1 and linear quadrupole excitation dynamics

in this paper, lagrangian and equations describing one-dimensional anisotropic non-heisenberg model are studied. in this study we used the generalized coherent states in real parametrizations and the feynman path integral for these states in su(3) group. these equations describe nonlinear dynamics of non-heisenberg ferromagnetic chain completely. solutions of these equations are magnetic solito...

Spin excitations in an anisotropic bond-alternating quantum s = 1 chain in a magnetic field: contrast to haldane spin chains.

Inelastic neutron scattering experiments on the S = 1 quasi-one-dimensional bond-alternating antiferromagnet Ni(C9D24N4)(NO2)ClO4 have been performed under magnetic fields below and above a critical field Hc at which the energy gap closes. Normal field dependence of Zeeman splitting of the excited triplet modes below Hc has been observed, but the highest mode is unusually small and smears out w...

Temperature dependence of current-induced magnetization switching in spin valves with a ferrimagnetic CoGd free layer.

The temperature dependence of current-induced magnetization switching of ferrimagnetic CoGd free layers in spin valves is explored. At temperatures well above and well below the magnetization compensation temperature (T(MC)) of CoGd, a current flowing from the free layer to the CoFe fixed layer aligns the moments of the two layers parallel, and a current flowing in the opposite direction aligns...