Structural and chemical characterization of Mn doped GaN nanowires by X-ray absorption spectroscopy

Han Kyu Seong, Ungkil Kim, Myoung Ha Kim, Hyun Hwi Lee, Dong Ryeol Lee, Jae Young Kim, Heon Jin Choi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We report on structural chemical state of doped Mn atoms in single crylstalline Mn doped GaN nanowires by X-ray absorption spectroscopy. Anomalous X-ray scattering and K-edge X-ray absorption fine structure measurement make it clear that Mn atoms substitute the Ga sites and they largely take part in the wurtzite network of host GaN. X-ray absorption and X-ray magnetic circular dichroism spectra at Mn L 2,3-edges show that doped Mn has local magnetic moment and the electronic configuration of the doped Mn is mainly 3d 5 component. The structural and chemical states of the doped Mn atoms imply that they ascribe to the observed ferromagnetism in these diluted magnetic semiconductor nanowires.

Original languageEnglish
Pages (from-to)6772-6776
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume9
Issue number11
DOIs
Publication statusPublished - 2009 Nov 1

Fingerprint

X-Ray Absorption Spectroscopy
Nanowires
X ray absorption spectroscopy
absorption spectroscopy
nanowires
X ray absorption
X-Rays
Atoms
x rays
Ferromagnetism
Dichroism
Magnetic moments
X ray scattering
Semiconductors
atoms
Circular Dichroism
X rays
wurtzite
ferromagnetism
dichroism

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Seong, Han Kyu ; Kim, Ungkil ; Kim, Myoung Ha ; Lee, Hyun Hwi ; Lee, Dong Ryeol ; Kim, Jae Young ; Choi, Heon Jin. / Structural and chemical characterization of Mn doped GaN nanowires by X-ray absorption spectroscopy. In: Journal of Nanoscience and Nanotechnology. 2009 ; Vol. 9, No. 11. pp. 6772-6776.
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abstract = "We report on structural chemical state of doped Mn atoms in single crylstalline Mn doped GaN nanowires by X-ray absorption spectroscopy. Anomalous X-ray scattering and K-edge X-ray absorption fine structure measurement make it clear that Mn atoms substitute the Ga sites and they largely take part in the wurtzite network of host GaN. X-ray absorption and X-ray magnetic circular dichroism spectra at Mn L 2,3-edges show that doped Mn has local magnetic moment and the electronic configuration of the doped Mn is mainly 3d 5 component. The structural and chemical states of the doped Mn atoms imply that they ascribe to the observed ferromagnetism in these diluted magnetic semiconductor nanowires.",
author = "Seong, {Han Kyu} and Ungkil Kim and Kim, {Myoung Ha} and Lee, {Hyun Hwi} and Lee, {Dong Ryeol} and Kim, {Jae Young} and Choi, {Heon Jin}",
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Structural and chemical characterization of Mn doped GaN nanowires by X-ray absorption spectroscopy. / Seong, Han Kyu; Kim, Ungkil; Kim, Myoung Ha; Lee, Hyun Hwi; Lee, Dong Ryeol; Kim, Jae Young; Choi, Heon Jin.

In: Journal of Nanoscience and Nanotechnology, Vol. 9, No. 11, 01.11.2009, p. 6772-6776.

Research output: Contribution to journalArticle

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T1 - Structural and chemical characterization of Mn doped GaN nanowires by X-ray absorption spectroscopy

AU - Seong, Han Kyu

AU - Kim, Ungkil

AU - Kim, Myoung Ha

AU - Lee, Hyun Hwi

AU - Lee, Dong Ryeol

AU - Kim, Jae Young

AU - Choi, Heon Jin

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AB - We report on structural chemical state of doped Mn atoms in single crylstalline Mn doped GaN nanowires by X-ray absorption spectroscopy. Anomalous X-ray scattering and K-edge X-ray absorption fine structure measurement make it clear that Mn atoms substitute the Ga sites and they largely take part in the wurtzite network of host GaN. X-ray absorption and X-ray magnetic circular dichroism spectra at Mn L 2,3-edges show that doped Mn has local magnetic moment and the electronic configuration of the doped Mn is mainly 3d 5 component. The structural and chemical states of the doped Mn atoms imply that they ascribe to the observed ferromagnetism in these diluted magnetic semiconductor nanowires.

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