Magnetic properties of a ferrimagnetic mixed spin chain with inhomogeneous crystal-field anisotropy

Magnetic properties in an alternating-spin ferromagnetic Ising chain

“…3 is similar as the one found by Solano-Carrillo et al in Ref. [14] using molecular field theory. We can observe that the diagram phase has one horizontal straight transition line and one non-horizontal transition line.…”

“…For alternating-spin systems, though of the same technique, was investigated the plateaus in systems with spins (S, 1 2 ) [13]. Using molecular field theory, it was found the magnetic plateaus of an alternating ferromagnetic chain with spins (1, 3 2 ) [14], as well general spins (S, S 0 ) [13]. In this work, we will attack this last problem without any approximation.…”

Formation of quantum magnetization plateaux in mixed-spin Ising chains with single-ion anisotropy

“…We propose doing this diagramatically [48] by appealing to the energy-level diagrams of some relevant spin quantum numbers as shown in Fig. 2.…”

“…We studied this system in a previous paper [48] for the two cases of interest D a a 0 with D au ¼ 0. Choosing c 1 as the initial state, a classical magnetization plateau is displayed at the value m ¼ 1 2 .…”

Unconventional features of the low‐temperature properties of a dimerized quantum mixed‐spin chain

“…We observed that when the number of unit cells N is odd the up-down configuration at the end spin-S sites is present in the ground state as opposed to the down-up configuration when N is even (the one shown). Here the chosen ground state depends on the parity of the number of unit cells instead of the number of sites, which seems to be the case for mixed-spin alternating chains [20]. The existence of a singlet ground state with effective spin-1/2 states at each spin-S end of our (S; s) open chain can be understood if we refer to the AKLT composite Picture [23] shown in Fig.…”