Experimental evidence of long-range magnetic order in the c(2X2) MnCu(100) surface alloy -: art. no. 094405

被引：32
|
作者：
Huttel, Y [1 ]
Teodorescu, CM
Bertran, F
Krill, G
机构：
[1] CSIC, Inst Ciencia Mat, Madrid 28049, Spain
[2] Ctr Univ Paris Sud, Utilisat Rayonnement Electromagnet Lab, F-91405 Orsay, France
来源：
PHYSICAL REVIEW B | 2001年 / 64卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.64.094405
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The first experimental evidence of long-range magnetic order in the c(2x2)MnCu(100) surface alloy formed by adsorption of 0.5 monolayer of Mn on Cu(100) at room temperature is reported. A carefully prepared c(2x2)MnCu(100) surface alloy exhibits a clear x-ray magnetic circular dichroism (XMCD) signal at low temperatures. From the temperature behavior of the XMCD signal, we deduce a Curie temperature T(c)approximate to 50 K. As for other surfaces containing Mn, we demonstrate that the magnetic properties of the surface alloy are strongly affected by contamination.
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页数：4
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