Volt–ampere characteristics of spin half-metallic transistor

Khvalkovskii, A. V.; Mischenko, A. S.; Zvezdin, A. K.

doi:10.1016/s0304-8853(02)01117-4

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B Interaction Of a Single Atom With The "44… Swnt1

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2004

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“…Halfmetallic materials are important because of their unique magneto-transport properties 38 and application to spintronics devices. 39 The stable sites for Ni are the same as for Co. The binding energy of Ni is similar to that of Co.…”

Section: B Interaction Of a Single Atom With The "44… Swntmentioning

confidence: 96%

Stable geometries and magnetic properties of single-walled carbon nanotubes doped with3dtransition metals: A first-principles study

et al. 2004

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The interaction of 3d transition metal atoms and dimers with a single-walled armchair carbon nanotube has been investigated by first-principles density functional calculations. For Fe-, Co-, and Ni-doped ͑4,4͒ nanotubes, outside adsorption sites are the most favorable. The interactions are largely ferromagnetic for Fe and Co, with the local magnetic moments of the dimers being similar to the free dimers. However, for Ni most structures are nonmagnetic. We have also examined the effects of curvature with calculations for graphene and the ͑8,8͒ nanotube. For the ͑8,8͒ nanotube, the interaction of Co becomes more favorable inside the nanotube. Doping of a single Co atom transforms the ͑4,4͒ and ͑8,8͒ nanotubes into half-metals. These results are useful for spintronics applications and could help in the development of magnetic nanostructures and metallic nanotube coatings.

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Section: B Interaction Of a Single Atom With The "44… Swntmentioning

confidence: 96%