Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1448020 | Acta Materialia | 2009 | 7 Pages |
Abstract
The magneto-transport properties of nanocomposite C:Co (15 and 40 at.% Co) thin films are investigated. The films were grown by ion beam co-sputtering on thermally oxidized silicon substrates in the temperature range from 200 to 500 °C. Two major effects are reported: (i) a large anomalous Hall effect amounting to 2 μΩ cm, and (ii) a negative magnetoresistance. Both the field-dependent resistivity and Hall resistivity curves coincide with the rescaled magnetization curves, a finding that is consistent with spin-dependent transport. These findings suggest that C:Co nanocomposites are promising candidates for carbon-based Hall sensors and spintronic devices.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shengqiang Zhou, Markus Berndt, Danilo Bürger, Viton Heera, Kay Potzger, Gintautas Abrasonis, György Radnóczi, György J. Kovács, Andreas Kolitsch, Manfred Helm, Jürgen Fassbender, Wolfhard Möller, Heidemarie Schmidt,