Magnetic and electric properties of C–Co thin films prepared by vaccum arc technique

Tembre, André; Clin, M.; Picot, J. C.; Dellis, J.‐L.; Henocque, J.; Bouzerar, R.; Djellab, Karim

doi:10.1016/j.jallcom.2011.06.068

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“…Recently, it has been reported that incorporation of iodine in amorphous carbon [23,24] and boron in diamond [25] leads to a metal-insulator transition at low temperature. Cobalt-doped carbon thin films at 0.3% cobalt content, deposited by a pulsed anodic electric arc technique, have shown anomalous behaviour on electric and magnetic susceptibility measurements and evidence of metal-insulator transition around 60 K [26]. This work aims at obtaining more information about the correlation between microstructure and features of infrared and Raman spectra of these carbon-cobalt thin films.…”

Section: Introductionmentioning

confidence: 99%

Infrared and Raman Spectroscopic Study of Carbon‐Cobalt Composites

Tembre

Henocque

Clin

2011

International Journal of Spectroscopy

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Analysis of carbon-cobalt thin films using infrared spectroscopy has shown existence of carbon-cobalt stretching mode and great porosity. The Raman spectroscopy and high-resolution transmission electron microscopy have been used in order to investigate the microstructure of the films. These films exhibit complex Raman spectra suggesting the presence of amorphous and crystallized phases. The different fractions of phases and the correlation between the atomic bond structures and the Raman features depend on the cobalt content.

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