Quantized magnetic moment at the edge of a single-walled carbon nanotube

Details Quantized magnetic moment at the edge of a single-walled carbon nanotube Quantized magnetic moment at the edge of a single-walled carbon nanotube

2010-07-07

arxiv.org/abs/1007.1050v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

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.

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