Ising nanowire with random field at surface; its unconventional effects

• The phase diagrams and magnetizations of Ising nanowire with random field at the surface are examined by the use of the EFT.
• We have found many unconventional behaviors and novel phenomena for them.
• The phase transition is the second-order.

The phase diagrams and temperature dependences of total magnetization mT in an Ising nanowire with a random magnetic field at the surface are studied by the uses of the effective-field theory with correlations. Many unconventional and novel phenomena have been obtained in them, although one section of the system is consisted of one spin-1/2 surface shell atom and one spin-1/2 core atom and they are coupled with a positive or a negative shell-core exchange interaction.