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Characterization of ferromagnetic contacts to carbon nanotubes

J. Appl. Phys. 106, 084314 (2009); doi:10.1063/1.3225571

Published 23 October 2009

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D. Preusche, S. Schmidmeier, E. Pallecchi, Ch. Dietrich, A. K. Hüttel, J. Zweck, and Ch. Strunk
Institute for Experimental and Applied Physics, University of Regensburg, 93040 Regensburg, Germany
We present an investigation of different thin-film evaporated ferromagnetic materials for their suitability as electrodes in individual single-wall and multi-wall carbon nanotube-based spin devices. Various electrode shapes made from permalloy (Ni81Fe19), the diluted ferromagnet PdFe, and PdFe/Fe bilayers are studied for both their micromagnetic properties and their contact formation to carbon nanotubes. Suitable devices are tested in low-temperature electron transport measurements, displaying the typical tunneling magnetoresistance of carbon nanotube pseudo-spin valves. ©2009 American Institute of Physics
History: Received 6 April 2009; accepted 14 August 2009; published 23 October 2009
Permalink: http://link.aip.org/link/?JAPIAU/106/084314/1
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KEYWORDS and PACS

Keywords
PACS
  • 75.70.Ak
    Magnetic properties of monolayers and thin films
  • 61.46.Fg
    Structure of nanotubes
  • 75.70.Cn
    Magnetic properties of interfaces
  • 75.50.Bb
    Ferromagnetism of Fe and its alloys
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
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