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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationFourth Conference on Sensors, MEMS, and Electro-Optic Systems
EditorsMonuko du Plessis
PublisherSPIE
ISBN (Electronic)9781510605138
DOIs
Publication statusPublished - 2017
Event4th South African Conference on Sensors, MEMS and Electro-Optical Systems, SMEOS 2016 - Skukuza, South Africa
Duration: 18 Sept 201620 Sept 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10036
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference4th South African Conference on Sensors, MEMS and Electro-Optical Systems, SMEOS 2016
Country/TerritorySouth Africa
CitySkukuza
Period18/09/1620/09/16

Keywords

  • Carbon nanotube
  • Device
  • Low temperature
  • Magnetoresistance
  • Spintronic

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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