Ferrimagnetic behaviors in a double-wall cubic metal nanotube

• A double-wall cubic metal nanotube with core/shell is proposed.
• Magnetization may appear two or three compensation points.
• Unconventional ferrimagnetic phenomena are found in the nanotube.

A double-wall cubic metal nanotube consists of the ferromagnetic spin-1 inner shell and spin-3/2 surface shell. It is of the ferrimagnetic exchange coupling between two shells. Considering the single-ion anisotropy and transverse field exist together, the magnetization, the initial susceptibility, the internal energy and the specific heat have been investigated by using the effective-field theory with correlations. Some interesting phenomena have been found in the thermal variations of the system. Magnetization appears two or three compensation points in certain parameters. It is an unconventional ferrimagnetic behavior in the nanotube. The shapes of total magnetization and the initial susceptibility are great influenced by the surface exchange coupling, surface single-ion anisotropy and surface transverse field. Some results of nanotube may have potential applications in different research fields, such as electronics, optics, mechanics, and even biomedicine and molecular devices.

A model of double-wall cubic metal nanotube is constructured and unconventional ferrimagnetic characteristic are found in the system.Figure optionsDownload as PowerPoint slide