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Magnetic properties of nickel nanostructures grown in AAO membrane

Abstract

One-dimensional nanostructures can be built by performing chemical or electrochemical reactions in the pores of a suitable host or matrix material. We have developed a method of electrodeposition of nickel nanostructures inside cylindrical pores of the anodic aluminum oxide (AAO) membranes, which provides precise control of the nanostructure height. We were able to fabricate hexagonal arrays of particles in the form of spheres, rods and long wires. Magnetization measurements of these nanostructures as function of field and temperature were carried out using a superconducting quantum-interference device magnetometer. The shape of nickel nanostructures has been investigated by field emission scanning electron microscope. The coercivity of the nickel nanostructures measured with the field perpendicular to the membrane was increasing with increasing aspect ratio of the nanostructures. These experimental values of the coercivity, varying from 200 Oe for the spherical nanodots to 730 Oe for the nanowires, are in a fair agreement with our micromagnetic modeling calculations.
Authors:
Oh, S -L; [1]  Kim, Y -R; [1]  Malkinski, L; [2]  Vovk, A; [2]  Whittenburg, S L; [2]  Kim, E -M; [3]  Jung, J -S [4] 
  1. Department of Chemistry, Yonsei University, Seoul (Korea, Republic of)
  2. Advanced Material Research Institute, University of New Orleans, New Orleans, LA 70148 (United States)
  3. Korea Basic Science Institute, Kangnung 210-702 (Korea, Republic of)
  4. Department of Chemistry, Kangnung National University, Kangnung 210-702 (Korea, Republic of)
Publication Date:
Mar 15, 2007
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Magnetism and Magnetic Materials; Journal Volume: 310; Journal Issue: 2; Conference: 17. international conference on magnetism, Kyoto (Japan), 20-25 Aug 2006; Other Information: DOI: 10.1016/j.jmmm.2006.10.821; PII: S0304-8853(06)02065-8; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; ASPECT RATIO; COERCIVE FORCE; ELECTROCHEMISTRY; ELECTRODEPOSITION; FIELD EMISSION; MAGNETIC PROPERTIES; MAGNETIZATION; MAGNETOMETERS; MATRIX MATERIALS; MEMBRANES; NICKEL; QUANTUM DOTS; QUANTUM WIRES; SCANNING ELECTRON MICROSCOPY; SQUID DEVICES
OSTI ID:
21002769
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0304-8853; JMMMDC; TRN: NL07S4575026891
Submitting Site:
NLN
Size:
page(s) e827-e829
Announcement Date:
Apr 19, 2008

Citation Formats

Oh, S -L, Kim, Y -R, Malkinski, L, Vovk, A, Whittenburg, S L, Kim, E -M, and Jung, J -S. Magnetic properties of nickel nanostructures grown in AAO membrane. Netherlands: N. p., 2007. Web. doi:10.1016/j.jmmm.2006.10.821.
Oh, S -L, Kim, Y -R, Malkinski, L, Vovk, A, Whittenburg, S L, Kim, E -M, & Jung, J -S. Magnetic properties of nickel nanostructures grown in AAO membrane. Netherlands. doi:10.1016/j.jmmm.2006.10.821.
Oh, S -L, Kim, Y -R, Malkinski, L, Vovk, A, Whittenburg, S L, Kim, E -M, and Jung, J -S. 2007. "Magnetic properties of nickel nanostructures grown in AAO membrane." Netherlands. doi:10.1016/j.jmmm.2006.10.821. https://www.osti.gov/servlets/purl/10.1016/j.jmmm.2006.10.821.
@misc{etde_21002769,
title = {Magnetic properties of nickel nanostructures grown in AAO membrane}
author = {Oh, S -L, Kim, Y -R, Malkinski, L, Vovk, A, Whittenburg, S L, Kim, E -M, and Jung, J -S}
abstractNote = {One-dimensional nanostructures can be built by performing chemical or electrochemical reactions in the pores of a suitable host or matrix material. We have developed a method of electrodeposition of nickel nanostructures inside cylindrical pores of the anodic aluminum oxide (AAO) membranes, which provides precise control of the nanostructure height. We were able to fabricate hexagonal arrays of particles in the form of spheres, rods and long wires. Magnetization measurements of these nanostructures as function of field and temperature were carried out using a superconducting quantum-interference device magnetometer. The shape of nickel nanostructures has been investigated by field emission scanning electron microscope. The coercivity of the nickel nanostructures measured with the field perpendicular to the membrane was increasing with increasing aspect ratio of the nanostructures. These experimental values of the coercivity, varying from 200 Oe for the spherical nanodots to 730 Oe for the nanowires, are in a fair agreement with our micromagnetic modeling calculations.}
doi = {10.1016/j.jmmm.2006.10.821}
journal = {Journal of Magnetism and Magnetic Materials}
issue = {2}
volume = {310}
place = {Netherlands}
year = {2007}
month = {Mar}
}