Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantized magnetic moment at the edge of a single-walled carbon nanotube   We investigate many-body effects near the edge of a single-walled carbon
nanotube and find it turns magnetic with quantized edge moment solely depends
on the chiral vector, i.e. the topology of the carbon nanotube. The
distribution of the edge moment reveals an approximate supersymmetry even in a
realistic model. Our findings demonstrate crucial importance of the interplay
between the electronic correlation and the edge morphology. The edge moment
provides an excellent candidate for nanomagnet farbrication which has potential
applications in biological and chemical detections, and in spintronics.

26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol