Characterisation of Ferromagnetic Contacts to Carbon Nanotubes

Details Characterisation of Ferromagnetic Contacts to Carbon Nanotubes Characterisation of Ferromagnetic Contacts to Carbon Nanotubes

2009-04-06

arxiv.org/abs/0904.0907v2

Journal of Applied Physics 106, 084314 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 13 figures

Scientific paper

10.1063/1.3225571

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 (Ni_{81}Fe_{19}), 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.

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