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Single crystalline nickel nanorods inside carbon nanotubes: Growth behavior, structure, and magnetic properties

DSpace at IIT Bombay

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Title Single crystalline nickel nanorods inside carbon nanotubes: Growth behavior, structure, and magnetic properties
 
Creator TYAGI, PK
MISRA, A
SINGH, MK
TITUS, E
MISRA, DS
GHATAK, J
SATYAM, PV
ROY, M
 
Subject field emitters
nanowires
nanocomposites
temperature
fabrication
templates
films
size
ni
carbon nanotubes
nickel nanorods
magnetic properties
lattice fringes
 
Description Nickel nanorods with diameters ranging from 5 to 10 nm, encapsulated inside the carbon nanotubes, are prepared using microwave plasma chemical vapor deposition. High-resolution transmission electron microscopy (HRTEM) studies reveal the perfect crystalline nature of the rods with of-spacing closely matching the (1111) interplanar spacing of Ni. The (1111) planes of the Ni nanorods are always aligned at 39.6° with respect to the graphite planes of the nanotubes. The cosine component of the d-spacing along the direction of the graphite planes is found to be 1.6 &ANGS;; exactly half the d-spacing between the graphite planes. The electron diffraction pattern shows clear spots corresponding to Ni structure. The field cooled and zero field cooled magnetization data reveal the reversibility of the magnetization of the Ni nanorods and show a blocking temperature of 195 K, which correspond to energy barrier of 0.4 eV/(V).
 
Publisher AMER SCIENTIFIC PUBLISHERS
 
Date 2011-07-17T03:55:35Z
2011-12-26T12:50:06Z
2011-12-27T05:36:05Z
2011-07-17T03:55:35Z
2011-12-26T12:50:06Z
2011-12-27T05:36:05Z
2005
 
Type Article
 
Identifier JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 5(4), 596-600
1533-4880
http://dx.doi.org/10.1166/jnn.2005.070
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4607
http://hdl.handle.net/10054/4607
 
Language en