28 May 2009 Spin-dependent transport in hard superparamagnetic C:Ni nanocomposites
Author Affiliations +
Structural, magnetic, and magneto-transport properties in C:Ni (30 at.%) nanocomposite films grown by ion beam cosputtering at 500 °C are investigated by means of transmission electron microscopy, superconducting quantum interference device magnetometry and electrical transport measurements. The C:Ni film shows a superparamagnetic behavior with a large coercivity field of 250 Oe at 5 K compared with bulk Ni metals. Anomalous Hall effect is observed in C:Ni nanocomposites, which is attributed to the scattering of spin-polarized carriers by the magnetic Ni nanoparticles in the carbon matrix.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shengqiang Zhou, G. Abrasonis, A. Mücklich, K. Potzger, J. Fassbender, M. Helm, H. Schmidt, "Spin-dependent transport in hard superparamagnetic C:Ni nanocomposites", Proc. SPIE 7364, Nanotechnology IV, 736406 (28 May 2009); doi: 10.1117/12.821465; https://doi.org/10.1117/12.821465

Back to Top