Vibrational properties of sp carbon atomic wires in cluster-assembled carbon films
نویسندگان
چکیده
منابع مشابه
Mesoscopic elastic properties of cluster-assembled carbon films
– The mesoscopic elastic response of cluster-assembled carbon films was measured by Brillouin light scattering. The values of bulk modulus and shear modulus were estimated from the shifts of both surface and bulk phonon peaks. The most basic mechanical properties of these new materials were so investigated down to the scale of a few hundreds of nanometers. The shear modulus is found in the rang...
متن کاملBrillouin Scattering of Cluster-assembled Carbon Films
The low frequency vibrational spectrum of cluster beam deposited carbon films was studied by Brillouin light scattering. In thin films the values of both bulk modulus and shear modulus has been estimated from the shifts of surface phonon peaks. The values found indicate a mainly sp’ coordinated random network with low density. In thick films a bulk longitudinal phonon peak was detected in a spe...
متن کاملNanofriction behavior of cluster-assembled carbon films.
We have characterized the frictional properties of nanostructured carbon films grown by supersonic cluster beam deposition via an atomic force-friction force microscope (AFM-FFM). The experimental data are discussed on the basis of a modified Amonton's law for friction, stating a linear dependence of friction on load plus an adhesive offset accounting for a finite friction force in the limit of...
متن کاملElectron field emission from cluster-assembled carbon thin films
– Cluster-assembled carbon films deposited at room temperature from a supersonic cluster beam are found to be good electron field emitters. The films have been characterized by Raman spectroscopy showing a largely sp bonded character. Scanning Electron Microscopy shows that the films have a low-density granular structure, characterized by voids on the nanoscale. We have observed a threshold fie...
متن کاملinvestigation of the electronic properties of carbon and iii-v nanotubes
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
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ژورنال
عنوان ژورنال: physica status solidi (b)
سال: 2010
ISSN: 0370-1972,1521-3951
DOI: 10.1002/pssb.200983946