Hysteresis behaviors in a cylindrical Ising nanowire

The hysteresis behaviors of the cylindrical Ising nanowire are investigated within the effective-field theory with correlations at temperatures below, around and above the critical temperature. The hysteresis curves are obtained for different reduced temperatures both ferromagnetic and antiferromagnetic interactions between the shell and the core. We find that the hysteresis loop areas decrease when the reduced temperatures increase, and the hysteresis loops disappear at certain reduced temperatures. Moreover, for the antiferromagnetic nanowire the hysteresis loop areas disappear earlier than the ferromagnetic case as the reduced temperature increases. An unusual form of triple hysteresis behaviors is observed for the antiferromagnetic nanowire system. The thermal behaviors of the coercivities and remanent magnetizations are also investigated. The results are in good agreement with some experimental and theoretical results.

► The hysteresis behaviors of cylindrical Ising nanowire have been studied using EFT.
► The hysteresis curves are obtained for different reduced temperatures.
► The areas of the loops are decreasing with increasing of the reduced temperatures.
► Triple hysteresis behavior for the antiferromagnetic nanowire system is observed.
► The thermal behavior of coercivities and remanent magnetizations are investigated.