The Thermodynamic Properties of Polarized Metallic Nanowire in the Presence of Magnetic Field

In this article, the second quantization method has been used to investigate some thermodynamic properties of spin-polarized metallic nanowire with radius 5 and 10 nm and infinite length, in the presence of magnetic field at zero temperature. The spin-polarization parameter corresponding to the equilibrium state of the system has been plotted as a function of density for different values of the magnetic field. We have concluded that for the magnetic fields less than 100 T at high densities, the system nearly becomes unpolarized. However, for higher magnetic fields, the system has a substantial spin-polarization, even at high densities. Finally, we have calculated the pressure and incompressibility vs. the density for different values of the magnetic field.