Effects of Environment on Local Moment Formation

摘要

The effects of local environment on magnetic moment formation are studied, starting from a generalized Hubbard Hamiltonian local moment formation is considered in particular for Au-V and Cu-Ni alloys. It is shown that moment formation is a cooperative phenomenon, which for Cu-Ni cannot be adequately described by purely chemical models. The temperatures for moment formation and for local ordering of the moments are discussed for Cu-Ni. (Author)