摘要
The surface magnetism of one monolayer Mn atoms on GaAs(001)surface is studied by the self-consistent tight-binding linear muffin-tin orbital method.It is found that the magnetic ordered phases(ferromagnetic and antiferromagnetic)are more favorable than the paramagnetic one,the density of states peak far below the Fermi level observed in synchrotron radiation photoemission study has been identified as due to the contribution of Mn 3d majority states.
基金
Supported by the National Climbing Program of China(Grant No.95-YU-41)
the National Natural Science Foundation of China under Grant Nos.19625410 and 19734002
the Fok Ying-dong Education Foundation for Young Faculties
Shanghai Commission of Science and Technology
the Science Foundation of He'nan Province(984051800).
