Low temperature magneto transport features of rare earth element functionalized carbon nanotube network devices for spintronic applications

Siphephile Ncube; Amy Naicker; Christopher Coleman; Alvaro de Souza; Emmanuel Flahaut; Andre Strydom; Somnath Bhattacharyya

doi:10.1117/12.2245405

3 February 2017 Low temperature magneto transport features of rare earth element functionalized carbon nanotube network devices for spintronic applications

Siphephile Ncube, Amy Naicker, Christopher Coleman, Alvaro de Souza, Emmanuel Flahaut, Andre Strydom, Somnath Bhattacharyya

Author Affiliations +

Proceedings Volume 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems; 1003607 (2017) https://doi.org/10.1117/12.2245405
Event: Fourth Conference on Sensors, MEMS and Electro-Optic Systems, 2016, Skukuza, Kruger National Park, South Africa

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.

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Siphephile Ncube, Amy Naicker, Christopher Coleman, Alvaro de Souza, Emmanuel Flahaut, Andre Strydom, and Somnath Bhattacharyya "Low temperature magneto transport features of rare earth element functionalized carbon nanotube network devices for spintronic applications", Proc. SPIE 10036, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems, 1003607 (3 February 2017); https://doi.org/10.1117/12.2245405

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KEYWORDS

Magnetism

Gadolinium

Composites

Carbon nanotubes

Spintronics

Raman spectroscopy

Transmission electron microscopy

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