Surface and interface magnetism of V/W systems

Abstract

75.30.Cr, 75.70.Rf, 75.70.Cn In this work, we investigate the magnetic properties of the V/W system, in the (001), (011), and (111) crystallographic orientations with and without relaxation at T = 0 K. Calculations of the magnetic moments are carried out using the real-space tight-binding method with a Hubbard Hamiltonian within the Hartree -Fock approximation. The coordination number, the type of the neighboring atoms, and the change of the vertical and horizontal distances between V atoms in the considered system are found to play a role in determining its magnetic properties. The magnetization is found to decrease when V is allowed to relax. The W interfacial layers acquired a sizeable induced magnetic moment.