MAGNETIC-PROPERTIES OF FE AG MULTILAYERS WITH INTERFACE ROUGHNESS BY A 1ST-PRINCIPLES TIGHT-BINDING LMTO METHOD

被引:18
作者
KROMPIEWSKI, S [1 ]
KRAUSS, U [1 ]
KREY, U [1 ]
机构
[1] POLISH ACAD SCI, INST MOLEC PHYS, PL-60179 POZNAN, POLAND
关键词
D O I
10.1016/0304-8853(91)90845-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A first principles tight-binding linear muffin-tin orbital method has been applied to describe magnetic properties of epitaxially grown bcc-Fe(001)/fcc-Ag(001) and bcc-Fe(110)/fcc-Ag(111) multilayers. The atomic sphere approximation has been adopted and the Hamiltonian to first order in E - E(v) has been constructed in terms of self-consistently calculated potential parameters and screened structure constants. It is shown by real-space calculations that although in the absence of disorder the interface states possess higher magnetic moments than the bulk ones, the interface roughness accompanied by chemical disorder increases the average magnetic moment per Fe, reducing simultaneously rather drastically the difference in magnetizations between the interface and the central atomic layers.
引用
收藏
页码:L295 / L300
页数:6
相关论文
共 16 条