Magneto-optical properties of ZnO-based diluted magnetic semiconductors

K. Ando; H. Saito; Zhengwu Jin; T. Fukumura; M. Kawasaki; Y. Matsumoto; H. Koinuma

doi:10.1063/1.1356035

Magneto-optical properties of ZnO-based diluted magnetic semiconductors

K. Ando, H. Saito, Zhengwu Jin, T. Fukumura, M. Kawasaki, Y. Matsumoto, H. Koinuma

Research output: Contribution to journal › Conference article › peer-review

285 Citations (Scopus)

Abstract

Magnetic circular dichroism (MCD) spectra of Zn_{1 - x}TM_xO (TM=Sc, Ti, V, Cr, Mn, Co, Ni, and Cu) films were measured to clarify their magneto-optical properties. Noticeable magneto-optical effect was not observed for Zn_{1 - x}SC_xO, Zn1 - xTi_xO, Zn_{1 - x}V_xO, and Zn_{1 - x}Cr_xO. On the contrary, Zn_{1 - x}Mn_xO, Zn_{1 - x}Co_xO, Zn_{1 - x}Ni_xO, and Zn_{1 - x}Cu_xO showed pronounced negative MCD peaks near 3.4 eV which correspond to the band gap of the host ZnO semiconductor. These results show that ZnO alloyed with Mn, Co, Ni, and Cu is a diluted magnetic semiconductor with strong exchange interaction between sp-band carriers and localized d electrons.

Original language	English
Pages (from-to)	7284-7286
Number of pages	3
Journal	Journal of Applied Physics
Volume	89
Issue number	11 II
DOIs	https://doi.org/10.1063/1.1356035
Publication status	Published - 2001 Jun 1
Externally published	Yes
Event	8th Joint Magnetism and Magnetic Materials-Intermag Conference - San Antonio, TX, United States Duration: 2001 Jan 7 → 2001 Jan 11

ASJC Scopus subject areas

Physics and Astronomy(all)

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@article{33f5f7a77d55424194351af13e452dc1,

title = "Magneto-optical properties of ZnO-based diluted magnetic semiconductors",

abstract = "Magnetic circular dichroism (MCD) spectra of Zn1 - xTMxO (TM=Sc, Ti, V, Cr, Mn, Co, Ni, and Cu) films were measured to clarify their magneto-optical properties. Noticeable magneto-optical effect was not observed for Zn1 - xSCxO, Zn1 - xTixO, Zn1 - xVxO, and Zn1 - xCrxO. On the contrary, Zn1 - xMnxO, Zn1 - xCoxO, Zn1 - xNixO, and Zn1 - xCuxO showed pronounced negative MCD peaks near 3.4 eV which correspond to the band gap of the host ZnO semiconductor. These results show that ZnO alloyed with Mn, Co, Ni, and Cu is a diluted magnetic semiconductor with strong exchange interaction between sp-band carriers and localized d electrons.",

author = "K. Ando and H. Saito and Zhengwu Jin and T. Fukumura and M. Kawasaki and Y. Matsumoto and H. Koinuma",

year = "2001",

month = jun,

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doi = "10.1063/1.1356035",

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publisher = "American Institute of Physics Publising LLC",

number = "11 II",

note = "8th Joint Magnetism and Magnetic Materials-Intermag Conference ; Conference date: 07-01-2001 Through 11-01-2001",

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TY - JOUR

T1 - Magneto-optical properties of ZnO-based diluted magnetic semiconductors

AU - Ando, K.

AU - Saito, H.

AU - Jin, Zhengwu

AU - Fukumura, T.

AU - Kawasaki, M.

AU - Matsumoto, Y.

AU - Koinuma, H.

PY - 2001/6/1

Y1 - 2001/6/1

N2 - Magnetic circular dichroism (MCD) spectra of Zn1 - xTMxO (TM=Sc, Ti, V, Cr, Mn, Co, Ni, and Cu) films were measured to clarify their magneto-optical properties. Noticeable magneto-optical effect was not observed for Zn1 - xSCxO, Zn1 - xTixO, Zn1 - xVxO, and Zn1 - xCrxO. On the contrary, Zn1 - xMnxO, Zn1 - xCoxO, Zn1 - xNixO, and Zn1 - xCuxO showed pronounced negative MCD peaks near 3.4 eV which correspond to the band gap of the host ZnO semiconductor. These results show that ZnO alloyed with Mn, Co, Ni, and Cu is a diluted magnetic semiconductor with strong exchange interaction between sp-band carriers and localized d electrons.

AB - Magnetic circular dichroism (MCD) spectra of Zn1 - xTMxO (TM=Sc, Ti, V, Cr, Mn, Co, Ni, and Cu) films were measured to clarify their magneto-optical properties. Noticeable magneto-optical effect was not observed for Zn1 - xSCxO, Zn1 - xTixO, Zn1 - xVxO, and Zn1 - xCrxO. On the contrary, Zn1 - xMnxO, Zn1 - xCoxO, Zn1 - xNixO, and Zn1 - xCuxO showed pronounced negative MCD peaks near 3.4 eV which correspond to the band gap of the host ZnO semiconductor. These results show that ZnO alloyed with Mn, Co, Ni, and Cu is a diluted magnetic semiconductor with strong exchange interaction between sp-band carriers and localized d electrons.

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SN - 0021-8979

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T2 - 8th Joint Magnetism and Magnetic Materials-Intermag Conference

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