Magnetotransport in Novel Low-Dimensional Carbon Nanomaterials

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  • Engels
  • Paperback
  • 9783838106007
  • 24 april 2009
  • 208 pagina's
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Several novel low-dimensional carbon nanomaterials, scilicet graphene mono- and bilayers, single-walled carbon nanotubes (SWNTs) and SWNTs filled with Dy@C82 endohedral metallofullerenes (metallofullerene peapods), were investigated by electrical magnetotransport measurements at low temperatures in external magnetic fields of different orientations. The highlights of this study are that for both SWNTs and metallofullerene peapods, significant negative magnetoresistance (approx. 8 to 14 %) could be observed for axially oriented magnetic fields in some of the samples, where this effect vanished for the perpendicular magnetic field orientation. Other nanotubes did not show this effect at all. We assign the clearly different magnetotransport of the nanotubes in the parallel magnetic field configuration to different chiralities. Moreover, height undulations of the differential conductance Coulomb blockade peaks of SWNTs accompanied by shifts of the respective peak positions along the gate voltage direction were observed. Great importance was attached to combining the magnetotransport measurements with further investigations as high-resolution TEM or AFM on the very same sample.

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Taal
en
Bindwijze
Paperback
Oorspronkelijke releasedatum
24 april 2009
Aantal pagina's
208
Illustraties
Nee

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Hoofdauteur
Dirk Obergfell

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Extra groot lettertype
Nee
Product breedte
152 mm
Product hoogte
11 mm
Product lengte
229 mm
Studieboek
Ja
Verpakking breedte
152 mm
Verpakking hoogte
12 mm
Verpakking lengte
229 mm
Verpakkingsgewicht
286 g

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9783838106007

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