Mechanism of magnetism in stacked nanographite with open shell electrons

Details Mechanism of magnetism in stacked nanographite with open shell electrons Mechanism of magnetism in stacked nanographite with open shell electrons

2001-08-29

arxiv.org/abs/cond-mat/0108499v3

Chemical Physics Letters, vol. 351, pp. 128-134 (2002)

Physics

Condensed Matter

Materials Science

13 pages; Harigaya's Web site: http://staff.aist.go.jp/k.harigaya/welcome_E.html; Nanotech. Inst. of AIST: http://unit.aist.

Scientific paper

10.1016/S0009-2614(01)01338-0

Antiferromagnetism in stacked nanographite is investigated with using the Hubbard-type models. The A-B stacking or the stacking near to that of A-B type is favorable for the hexagonal nanographite with zigzag edges, in order that magnetism appears. Next, we find that the open shell electronic structure can be an origin of the decreasing magnetic moment with the decrease of the inter-graphene distance, as experiments on adsorption of molecules suggest.

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