Comparative study on magnetoresistance of carbon-cobalt nanocomposite thin films grown by pulsed laser deposition

2018/03/06 by S. Sergeenkov, Sergeenkov, S., C. Cordova +11
Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.1803.02064

arxiv created 2018/03/06 · arxiv updated 2018/03/07

Abstract

We present a comparative study on the influence of applied magnetic field on the resistance of C_1-xCo_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.

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