Title

Magnetotransport properties of thin C-Fe films

Document Type

Article

Publication Date

1-31-2011

Abstract

The magnetotransport properties of C-Fe films formed by e-beam vapor deposition onto glass substrates are presented in the temperature region of 2 K to 300 K. Hall effect measurements reveal a significant anomalous Hall voltage whose magnitude increases with increasing temperature. Measurements of the ordinary Hall coefficient in 10 nm-thick films reveal a charge carrier density ranging from n ≅ 3.0 × 1029 m-3 at 2 K to approximately half that value at 290 K. A comparison between anomalous Hall effect and parallel field magneto-optic Kerr effect measurements reveals a highly anisotropic coercive field with the easy direction lying in the plane of the film. Magnetoresistance measurements show that the films posses isotropic linear positive magnetoresistance beyond their saturation magnetization. The presence of carbon nanotubes formed during the e-beam process is confirmed via atomic force microscopy. © 2010 Elsevier B.V. All rights reserved.

Publication Source (Journal or Book title)

Thin Solid Films

First Page

2362

Last Page

2365

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