Magnetism of an Ru adlayer on graphite

被引:9
作者
Kruger, P [1 ]
Demangeat, C [1 ]
Parlesbas, JC [1 ]
Mokrani, A [1 ]
机构
[1] LPME,F-44072 NANTES,FRANCE
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1996年 / 37卷 / 1-3期
关键词
magnetism; graphite; ruthenium;
D O I
10.1016/0921-5107(95)01497-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using a tight-binding Hubbard model within the unrestricted Hartree-Fock approximation we study the ground state electronic and magnetic structure of an Ru monolayer epitaxially adsorbed on graphite, Pfandzelter et al. (R. Pfandzelter. G. Steierl and C. Rau, Phys. Ret. Lett., 74(1995;) 3467: G. Steierl, R. Pfandzelter and C. Rau, J. Appl. Phys., 76(1994) 6431) have recently studied this system experimentally and they observed ferromagnetism at temperatures below 250 K. By comparison with an isolated Ru monolayer which has the same structure as the adlayer we discuss the role of the graphite substrate.
引用
收藏
页码:242 / 246
页数:5
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