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Proceedings Paper

Low temperature magneto transport features of rare earth element functionalized carbon nanotube network devices for spintronic applications
Author(s): Siphephile Ncube; Amy Naicker; Christopher Coleman; Alvaro de Souza; Emmanuel Flahaut; Andre Strydom; Somnath Bhattacharyya
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Paper Abstract

In this paper we report on the fabrication of a spintronic device based on multiwalled carbon nanotubes functionalized/coupled with a rare earth element complex. The spin valve behavior is verified by magneto-resistance fluctuations at low temperatures. We report the magneto-transport features of spin valve devices based on multiwalled carbon nanotube covalently functionalized with a gadolinium complex. The switching is encoded in the composite from which devices are fabricated by di-electrophoresis. The magnetic field dependent electronic transport characteristics are investigated through the Cryogenic high field measurement system at 300 mK. Structural characterization of the material through transmission and scanning electron microscopy and Raman spectroscopy of the pristine and composite is done. The electronic transport shows a magnetic field dependence which is characteristic of spin valve at 300 mK and furthermore this spin valve feature is temperature dependent.

Paper Details

Date Published: 3 February 2017
PDF: 8 pages
Proc. SPIE 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems, 1003607 (3 February 2017); doi: 10.1117/12.2245405
Show Author Affiliations
Siphephile Ncube, Univ. of the Witwatersrand (South Africa)
Amy Naicker, Univ. of the Witwatersrand (South Africa)
Christopher Coleman, Univ. of the Witwatersrand (South Africa)
Alvaro de Souza, Univ. of the Witwatersrand (South Africa)
Emmanuel Flahaut, CIRIMAT, Univ. de Toulouse, CNRS, INPT, UPS (France)
Andre Strydom, Univ. of Johannesburg (South Africa)
Somnath Bhattacharyya, Univ. of the Witwatersrand (South Africa)

Published in SPIE Proceedings Vol. 10036:
Fourth Conference on Sensors, MEMS, and Electro-Optic Systems
Monuko du Plessis, Editor(s)

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