Author/Authors :
Romanenko، نويسنده , , A.I. and Okotrub، نويسنده , , A.V. and Anikeeva، نويسنده , , O.B. and Bulusheva، نويسنده , , L.G. and Yudanov، نويسنده , , N.F. and Dong، نويسنده , , C. and Ni، نويسنده , , Y.، نويسنده ,
Abstract :
The magnetic susceptibility χ of pristine and brominated arc-produced sample of multiwall carbon nanotubes was measured from 4.2 to 400 K. An additional contribution Δχ(T) to diamagnetic susceptibility χ(T) of carbon nanotubes was found at T<50 K for both samples. It is shown that Δχ(T) are dominated by quantum correction toχ for interaction electrons (interaction effects-IE). The IE shows a crossover from two-dimensional to three-dimensional at B=5.5 T. The effective interaction between electrons for interior layers of nanotubes has been found to be repulsive and the electron–electron interaction λc was estimated to be λc∼0.26.
Keywords :
Electron–electron interaction , magnetic susceptibility , Brominated carbon nanotubes , Carbon nanotubes
