Formation and Characterization of (Zn1-xMnx)O Diluted Magnetic Semiconductors Grown on (0001) Al2O3 Substrates
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概要
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(Zn1-xMnx)O diluted magnetic semiconductors (DMSs) grown on (0001) Al2O3 substrates by radio frequency magnetron sputtering were investigated with the aim of producing a material with a high ferromagnetic transition temperature ($T_{\text{c}}$). X-ray diffraction, photoluminescence, and Hall-effect measurements showed that the grown (Zn1-xMnx)O thin films were p-type crystalline semiconductors with single phases. Magnetization curve as a function of magnetic field at 5 K indicated that ferromagnetism existed in the (Zn1-xMnx)O thin films, and magnetization curve as a function of temperature showed that the $T_{\text{c}}$ of the (Zn0.93Mn0.07)O thin film was 70 K. These observations can improve the understanding of the increase in $T_{\text{c}}$ for (Zn1-xMnx)O DMSs grown on (0001) Al2O3 substrates.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2003-12-15
著者
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KIM Doo
Quantum-functional Semiconductor Research Center, Dongguk University
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Min Cheonki
Quantum-functional Semiconductor Research Center Dongguk University
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Kim Hwa-mok
Quantum-functional Semiconductor Research Center Dongguk University
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Yuldashev Sh.
Quantum-functional Semiconductor Research Center Dongguk University
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Kim Tae
Advanced Semiconductor Research Center Division Of Electrical And Computer Engineering Hanyang Unive
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Kang Tae
Quantum Functional Semiconductor Research Center Dongguk University
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Lee Sejoon
Quantum-functional Semiconductor Research Center Dongguk University
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Kim Deuk
Quantum Functional Semiconductor Research Center Dongguk University
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Kim Hwa-Mok
Quantum-functional Semiconductor Research Center, Dongguk University, 3-26 Pil-dong, Chung-gu, Seoul 100-715, Korea
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Kang Tae
Quantum-Functional Semiconductor Research Center, Dongguk University, 3-26 Pil-dong, Chung-gu, Seoul 100-715, Korea
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Lee Sejoon
Quantum-functional Semiconductor Research Center, Dongguk University, 3-26 Pil-dong, Chung-gu, Seoul 100-715, Korea
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Kim Deuk
Quantum-functional Semiconductor Research Center, Dongguk University, 3-26 Pil-dong, Chung-gu, Seoul 100-715, Korea
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