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Cichetto Junior, Leonélio
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Publications (3/3 displayed)
- 2019Direct preparation of standard functional interfaces in oxide heterostructures for 2DEG analysis through beam-induced platinum contactscitations
- 2018Comparative study on magnetoresistance of carbon-cobalt nanocomposite thin films grown by pulsed laser deposition
- 2010Developing an experimental system to study the Magnetic Levitation Force of High-Temperature Superconductors (HTS)
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Comparative study on magnetoresistance of carbon-cobalt nanocomposite thin films grown by pulsed laser deposition
Abstract
We present a comparative study on the influence of applied magnetic field on the resistance of $C_{1-x}Co_x$ thin films (with $x=0.1$, $0.15$ and $0.2$) grown on $Si$ substrate by pulsed laser deposition technique. It is found that the behavior of magnetoresistance (MR) drastically depends on the temperature. Namely, at low temperatures MR is positive and its behavior is governed by the field mediated weak localization scenario. While at high temperatures MR turns negative and its behavior is dominated by electron scattering on ferromagnetic cobalt atoms.