Kumari, Reetu and Krishnia, Lucky and Kumar, Vinay and Singh, Sandeep and Singh, H. K. and Kotnala, R. K. and Juluri, R. R. and Bhatta, U. M. and Satyam, P. V. and Yadav, Brajesh S. and Naqvi, Zainab and Tyagi, Pawan K. (2016) Fe3C-filled carbon nanotubes: permanent cylindrical nanomagnets possessing exotic magnetic properties. Nanoscale, 8 (7). pp. 4299-4310. ISSN 2040-3364

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Abstract

The present study aims to deduce the confinement effect on the magnetic properties of iron carbide (Fe3C) nanorods filled inside carbon nanotubes (CNTs), and to document any structural phase transitions that can be induced by compressive/tensile stress generated within the nanorod. Enhancement in the magnetic properties of the nanorods is attributed to tensile stress as well as to compression, present in the radial direction and along the nanotube axis, respectively. Finally, the growth of permanent cylindrical nanomagnets has been optimized by applying a field gradient. Besides presenting the growth model of in situ filling, we have also proposed the mechanism of magnetization of the nanotubes. Magnetization along the tube axis has been probed by confirming the pole formation. Fe3C has been selected because of its ease of formation, low TC and incompressibility.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Royal Society of Chemistry.
Subjects:	Chemistry Materials Science Applied Physics/Condensed Matter Nanoscience/ Nanotechnology
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	20 Nov 2017 07:26
Last Modified:	20 Nov 2017 07:26
URI:	http://npl.csircentral.net/id/eprint/2219

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