Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetism at the interface of non-magnetic Cu and C$_{60}$   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 $\mu_B$/atom magnetic moment has been induced
in Cu at the Cu/C$_{60}$ interface.

22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg