Phase diagrams of a cylindrical transverse Ising ferrimagnetic nanotube; Effects of surface dilution

Phase diagrams (transition temperature and compensation temperature) of a cylindrical ferrimagnetic nanotube with a negative core–shell interaction, described by the transverse Ising model (TIM), are investigated by the use of the effective-field theory with correlations. The phase diagrams of the system are strongly affected by the surface dilution. The possibility of two compensation points is found in the phase diagram, in contrast to the case of a cylindrical TIM nanowire.

► The TCTC and TCOMP curves in a cylindrical transverse Ising nanotube have been examined.
► The effects of surface dilution to the TCTC and TCOMP have been examined using the EFT.
► The thermal variations of magnetizations have been investigated.
► The possibility of two compensation points has been found.