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Low-dimensional quantum antiferromagnetism is characterized by the weakness The recent experimental research progress of nanostructures under ions irradiation will be reported.
The molecular dynamics computation predicted that ion irradiation could also join single-walled carbon nanotubes[1]. Employing carbon ion irradiation on multi-walled carbon nanotubes, we find that the various molecular junctions of amorphous nanowires are formed by welding from crossed carbon nanotubes during the process. It demonstrates that ion-beam irradiation could be an effective way not only for the welding of nanotubes but also for the formation of nanowire junctions[2].
A simple way for the transformation of CNTs to nanocrystalline diamond has been developed[3]. Structural phase transformation from multi-walled carbon nanotubes to nanocrystalline diamond by hydrogen plasma post-treatment was carried out.
Single crystalline diamond nanorods with diameters of 4~8 nm and with lengths up to 200 nm have been successfully synthesized by hydrogen plasma post-treatment of multi-walled carbon nanotubes[4].
[1] A.V.Krasheninnikov et al, Phys. Rev. B66 (2002) 245403
[2] Z.X.Wang et al. Phys.Lett. A324(2004) 321
[3] L.T.Sun et al. Appl. Phys. Lett., Vol. 84, No.15 (2004) 2901
[4] L.T.Sun et al. Advanced Materials accepted 2004
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