Manganese concentration and low-temperature annealing dependence of (formula presented) by x-ray absorption spectroscopy

Y. Ishiwata, M. Watanabe, Ritsuko Eguchi, T. Takeuchi, Y. Harada, A. Chainani, S. Shin, T. Hayashi, Y. Hashimoto, S. Katsumoto, Y. Iye

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Mn-site-projected electronic structure of the diluted magnetic semiconductors (formula presented) (formula presented) 0.038, 0.047, 0.052, 0.058) of as-grown and low-temperature (LT) annealed samples are systematically studied using high-resolution Mn (formula presented) absorption spectroscopy. The study exhibits coexistence of the ferromagnetic (formula presented) ion and the paramagnetic Mn-As complex that transforms into the ferromagnetic component with LT annealing. The ratio of ferromagnetic to paramagnetic components is directly related to the x dependence of the hole density and ferromagnetic critical temperature.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number23
DOIs
Publication statusPublished - Jan 1 2002
Externally publishedYes

Fingerprint

Manganese
Absorption spectroscopy
x ray absorption
x ray spectroscopy
manganese
absorption spectroscopy
Annealing
X rays
annealing
Temperature
Electronic structure
Ions
critical temperature
electronic structure
high resolution
ions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Manganese concentration and low-temperature annealing dependence of (formula presented) by x-ray absorption spectroscopy. / Ishiwata, Y.; Watanabe, M.; Eguchi, Ritsuko; Takeuchi, T.; Harada, Y.; Chainani, A.; Shin, S.; Hayashi, T.; Hashimoto, Y.; Katsumoto, S.; Iye, Y.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 65, No. 23, 01.01.2002, p. 1-4.

Research output: Contribution to journalArticle

Ishiwata, Y, Watanabe, M, Eguchi, R, Takeuchi, T, Harada, Y, Chainani, A, Shin, S, Hayashi, T, Hashimoto, Y, Katsumoto, S & Iye, Y 2002, 'Manganese concentration and low-temperature annealing dependence of (formula presented) by x-ray absorption spectroscopy', Physical Review B - Condensed Matter and Materials Physics, vol. 65, no. 23, pp. 1-4. https://doi.org/10.1103/PhysRevB.65.233201
Ishiwata, Y. ; Watanabe, M. ; Eguchi, Ritsuko ; Takeuchi, T. ; Harada, Y. ; Chainani, A. ; Shin, S. ; Hayashi, T. ; Hashimoto, Y. ; Katsumoto, S. ; Iye, Y. / Manganese concentration and low-temperature annealing dependence of (formula presented) by x-ray absorption spectroscopy. In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 65, No. 23. pp. 1-4.
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AU - Harada, Y.

AU - Chainani, A.

AU - Shin, S.

AU - Hayashi, T.

AU - Hashimoto, Y.

AU - Katsumoto, S.

AU - Iye, Y.

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