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

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

doi:10.1103/PhysRevB.65.233201

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

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

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.65.233201
Publication status	Published - 2002
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.65.233201

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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, 65(23), 1-4. https://doi.org/10.1103/PhysRevB.65.233201

Manganese concentration and low-temperature annealing dependence of (formula presented) by x-ray absorption spectroscopy. / Ishiwata, Y.; Watanabe, M.; Eguchi, R.; 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, 2002, p. 1-4.

Research output: Contribution to journal › Article › peer-review

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, R. ; 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 - Chainani, A.

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AU - Hashimoto, Y.

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AU - Iye, Y.

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

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