The hysteresis behavior of an Ising nanowire with core/shell morphology: Monte Carlo treatment

• The hysteresis behavior of a mixed cylindrical Ising nanowire has been examined.
• The effects of the uniaxial anisotropy on the hysteresis behavior have been examined using the Monte carlo simulation.
• The thermal variations of magnetizations have been investigated.
• Many characteristic phenomena have been found in them.

We have used Monte Carlo Simulations (MCS) to study the hysteresis behavior of the magnetic nanowire with core/shell morphology described by the spin 12 Ising particles in the core and the spin 32 Ising particles in the surface shell. The hysteresis curves are obtained for different temperatures. We find that the hysteresis loop areas decrease when the temperature increases and the hysteresis loops disappear at certain temperatures. Barkhausen jumps are observed for the ferromagnetic nanowire system. An unusual form of triple hysteresis behaviors is observed for the ferrimagnetic nanowire system. The thermal behaviors of the coercivity and the remanent magnetization are also investigated.