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Arrays of Ferromagnetic Iron and Cobalt Nanocluster Wires

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G. H. Lee,*^† S. H. Huh,^† J. W. Park,^† H.-C. Ri,^‡ and J. W. Jeong^†

Department of Chemistry, College of Natural Sciences, Kyungpook National University, Taegu 702-701, South Korea, and Material Science Laboratory, Korea Basic Science Institute, 52 Yeoeun-Dong, Yusung-Ku, Taejeon 305-333, South Korea

J. Phys. Chem. B, 2002, 106 (9), pp 2123–2126

DOI: 10.1021/jp0122575

Publication Date (Web): October 2, 2001

Section:

Magnetic Phenomena

Abstract

We report a fabrication of arrays of ferromagnetic iron and cobalt nanocluster wires (NCWs), ranging from 8 to 10 nm in diameter and up to a few millimeters in length. The iron and the cobalt nanoclusters served as building blocks of the corresponding ferromagnetic NCWs. The iron and the cobalt nanoclusters were produced by thermally decomposing the corresponding metal carbonyl vapors with a resistive heater placed in the middle of a pair of permanent disk magnets. The NCWs were produced through pile-up of metallic nanoclusters along lines of magnetic flux, perpendicularly to the substrates attached to a pair of permanent disk magnet surfaces. We observed coercivities as large as 248 and 964 oersteds and remanences as high as 61 and 71% for the ferromagnetic iron and cobalt NCWs, respectively.

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This article has been cited by 4 ACS Journal articles (4 most recent appear below).

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Vapor Phase Growth and Assembly of Metallic, Intermetallic, Carbon, and Silicon Nanoparticle Filaments
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Synthesis of Uniform CoTe and NiTe Semiconductor Nanocluster Wires through a Novel Coreduction Method
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Inorganic Chemistry2003 42 (7), 2174-2175
- Synthesis of Uniform CoTe and NiTe Semiconductor Nanocluster Wires through a Novel Coreduction Method
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  A novel coreduction method was developed to synthesize uniform one-dimensional CoTe and NiTe nanocluster wires. In the synthesis, soluble Na2TeO3 was used to supply a highly reactive Te source and N2H4·H2O was used both as reducing agent and as complexing ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
CoCr Binary Nanocluster Wires: Enhanced Magnetic Properties of the Co-rich Phase
G. H. Lee, S. H. Huh, J. W. Jeong, S. H. Kim, and B. J. Choi, H.-C. Ri
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  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links