High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties

Zhengwu Jin; T. Fukumura; M. Kawasaki; K. Ando; H. Saito; T. Sekiguchi; Y. Z. Yoo; M. Murakami; Y. Matsumoto; T. Hasegawa; H. Koinuma

doi:10.1063/1.1377856

High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties

Zhengwu Jin, T. Fukumura, M. Kawasaki, K. Ando, H. Saito, T. Sekiguchi, Y. Z. Yoo, M. Murakami, Y. Matsumoto, T. Hasegawa, H. Koinuma

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Abstract

Combinatorial laser molecular-beam epitaxy method was employed to fabricate epitaxial ZnO thin films doped with all the 3d transition metal (TM) ions in a high throughput fashion. The solubility behavior of TM ions was discussed from the viewpoints of the ionic radius and valence state. The magneto-optical responses coincident with absorption spectra were observed for Mn- and Co-doped samples. Cathodoluminescence spectra were studied for Cr-, Mn-, Fe-, and Co-doped samples, among which Cr-doped ZnO showed two sharp peaks at 2.97 eV and 3.71 eV, respectively, at the expense of the exciton emission peak of pure ZnO at 3.25 eV. Different magnetoresistance behavior was observed for the samples codoped with n-type carriers. Ferromagnetism was not observed for Cr- to Cu-doped samples down to 3 K.

Original language	English
Pages (from-to)	3824-3826
Number of pages	3
Journal	Applied Physics Letters
Volume	78
Issue number	24
DOIs	https://doi.org/10.1063/1.1377856
Publication status	Published - 2001 Jun 11
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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Jin, Z., Fukumura, T., Kawasaki, M., Ando, K., Saito, H., Sekiguchi, T., Yoo, Y. Z., Murakami, M., Matsumoto, Y., Hasegawa, T., & Koinuma, H. (2001). High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties. Applied Physics Letters, 78(24), 3824-3826. https://doi.org/10.1063/1.1377856

Jin, Z, Fukumura, T, Kawasaki, M, Ando, K, Saito, H, Sekiguchi, T, Yoo, YZ, Murakami, M, Matsumoto, Y, Hasegawa, T & Koinuma, H 2001, 'High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties', Applied Physics Letters, vol. 78, no. 24, pp. 3824-3826. https://doi.org/10.1063/1.1377856

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title = "High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties",

abstract = "Combinatorial laser molecular-beam epitaxy method was employed to fabricate epitaxial ZnO thin films doped with all the 3d transition metal (TM) ions in a high throughput fashion. The solubility behavior of TM ions was discussed from the viewpoints of the ionic radius and valence state. The magneto-optical responses coincident with absorption spectra were observed for Mn- and Co-doped samples. Cathodoluminescence spectra were studied for Cr-, Mn-, Fe-, and Co-doped samples, among which Cr-doped ZnO showed two sharp peaks at 2.97 eV and 3.71 eV, respectively, at the expense of the exciton emission peak of pure ZnO at 3.25 eV. Different magnetoresistance behavior was observed for the samples codoped with n-type carriers. Ferromagnetism was not observed for Cr- to Cu-doped samples down to 3 K.",

author = "Zhengwu Jin and T. Fukumura and M. Kawasaki and K. Ando and H. Saito and T. Sekiguchi and Yoo, {Y. Z.} and M. Murakami and Y. Matsumoto and T. Hasegawa and H. Koinuma",

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AU - Jin, Zhengwu

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AU - Kawasaki, M.

AU - Ando, K.

AU - Saito, H.

AU - Sekiguchi, T.

AU - Yoo, Y. Z.

AU - Murakami, M.

AU - Matsumoto, Y.

AU - Hasegawa, T.

AU - Koinuma, H.

PY - 2001/6/11

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AB - Combinatorial laser molecular-beam epitaxy method was employed to fabricate epitaxial ZnO thin films doped with all the 3d transition metal (TM) ions in a high throughput fashion. The solubility behavior of TM ions was discussed from the viewpoints of the ionic radius and valence state. The magneto-optical responses coincident with absorption spectra were observed for Mn- and Co-doped samples. Cathodoluminescence spectra were studied for Cr-, Mn-, Fe-, and Co-doped samples, among which Cr-doped ZnO showed two sharp peaks at 2.97 eV and 3.71 eV, respectively, at the expense of the exciton emission peak of pure ZnO at 3.25 eV. Different magnetoresistance behavior was observed for the samples codoped with n-type carriers. Ferromagnetism was not observed for Cr- to Cu-doped samples down to 3 K.

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High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties

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