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

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

Research output: Contribution to journal › Article

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 - Jan 1 2002
Externally published	Yes

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ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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, 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 journal › Article

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.

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AU - Hashimoto, Y.

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10.1103/PhysRevB.65.233201