Magnetic properties of vanadium-doped silicon carbide nanowires

Han Kyu Seong, Tae Eon Park, Seung Cheol Lee, Kwang Ryeol Lee, Jae Kwan Park, Heon-Jin Choi

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

This study reports the magnetic properties of vanadium (V) doped single crystalline silicon carbide nanowires. The first principle calculation indicated that the V-doped cubic SiC phase can exhibit half-metallic ferromagnetic properties that are essential for the realization of spintronic devices. Based on this calculation, V-doped SiC nanowires were fabricated in a chemical vapor deposition process. The single crystalline β-SiC nanowires, which are doped with ca. 4 at.% of V, had diameters of < 100 nm and a length of several μm. High-resolution transmission electron microscopy observations revealed vanadium carbide (VC) phases in the nanowires, even at this low concentration of dopants. Magnetic characterization implies that the nanowires are a mixture of the diamagnetic phase of VC and ferro- or paramagnetic phases of V-doped SiC. These results suggest that the doping of transition metal having high solubility to the SiC phase can lead to the realization of dilute magnetic semiconductor behavior at very low temperature.

Original languageEnglish
Pages (from-to)107-111
Number of pages5
JournalMetals and Materials International
Volume15
Issue number1
DOIs
Publication statusPublished - 2009 Feb 1

Fingerprint

Vanadium
Silicon carbide
silicon carbides
vanadium
Nanowires
Magnetic properties
nanowires
magnetic properties
vanadium carbides
Carbides
Doping (additives)
Crystalline materials
Magnetic semiconductors
Magnetoelectronics
High resolution transmission electron microscopy
Transition metals
low concentrations
Chemical vapor deposition
solubility
Solubility

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Metals and Alloys
  • Mechanics of Materials
  • Materials Chemistry

Cite this

Seong, Han Kyu ; Park, Tae Eon ; Lee, Seung Cheol ; Lee, Kwang Ryeol ; Park, Jae Kwan ; Choi, Heon-Jin. / Magnetic properties of vanadium-doped silicon carbide nanowires. In: Metals and Materials International. 2009 ; Vol. 15, No. 1. pp. 107-111.
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Magnetic properties of vanadium-doped silicon carbide nanowires. / Seong, Han Kyu; Park, Tae Eon; Lee, Seung Cheol; Lee, Kwang Ryeol; Park, Jae Kwan; Choi, Heon-Jin.

In: Metals and Materials International, Vol. 15, No. 1, 01.02.2009, p. 107-111.

Research output: Contribution to journalArticle

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AU - Lee, Seung Cheol

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