Electronic structure and magnetism of metastable bcc Co(001)

摘要: Abstract The electronic structure and magnetism of thin films metastable bcc phase Co(001) consisting one-, five- nine-layers is determined by means all-electron local spin density full potential linearized augmented plane wave (FLAPW) calculations at the lattice constant found for Co stabilized on a GaAs substrate Prinz. Band structure, surface states, charge densities contact hyperfine fields are presented. center layer many-layer yields magnetic moment 1.76μB which agrees well with results bulk Co. has (1.94μB) only 10% greater than value - in sharp contrast to enhancement other transition metal surfaces [35% Fe(001), 20% Ni(001) over 300% Cr(001)]. Unlike these surfaces, even first below indicates that density, like shows very short range screening surface-vacuum interface.