论文标题
非磁性铜和c $ _ {60} $的接口处的磁性
Magnetism at the interface of non-magnetic Cu and C$_{60}$
论文作者
论文摘要
在非磁性异质结构中没有铁磁体的磁性标志是新颖的,并且从基本研究的角度引人入胜。 Al'mari等人已经表明,由于状态密度的变化,可以在CU/C60的界面诱导磁力。但是,尚未进行这种界面磁矩的定量。为了量化CU中的诱导磁矩,我们对Cu/c $ _ {60} $多层次进行了X射线磁圆二色性(XMCD)测量。我们已经观察到cu/c $ _ {60} $堆栈中的室温铁电磁。进一步的XMCD测量结果表明,在Cu/c $ _ {60} $接口中,Cu中诱导了〜0.01 $μ_b$/ATOM磁矩。
The signature of magnetism without a ferromagnet in a non-magnetic heterostructure is novel as well as fascinating from fundamental research point of view. It has been shown by Al'Mari et al: that magnetism can be induced at the interface of Cu/C60 due to change in density of states. However, the quantification of such interfacial magnetic moment has not been performed yet. In order to quantify the induced magnetic moment in Cu, we have performed X-ray magnetic circular dichroism (XMCD) measurements on Cu/C$_{60}$ multilayers. We have observed room temperature ferromagnetism in Cu/C$_{60}$ stack. Further XMCD measurements show that ~0.01 $μ_B$/atom magnetic moment has been induced in Cu at the Cu/C$_{60}$ interface.