Modulated Na<sub>2</sub>Ti<sub>4</sub>O<sub>9</sub>:Zr Nanobelt via Site-Specific Zr Doping
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概要
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Zr-doped sodium titanate nanobelts were obtained by a hydrothermal treatment of TiO<sub>2</sub> powder on Ti-based bulk metallic glass (BMG). The latest aberration-correction techniques were used to determine the atomic structure of Zr-doped sodium titanate nanobelts. The nanobelts were found to exhibit a structural modulation by the periodic Zr substitution of Ti atoms at 1.75 nm intervals. Systematic density-functional theory (DFT) calculations confirmed the optimized atomic arrangement in consistency with the experimental results, and a reduction of the band gap value could possibly enhance the characteristics of the materials used in a variety of circumstances.
- 2011-08-25
著者
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Chen Mingwei
Wpi Advanced Inst. For Materials Res. Tohoku Univ.
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Wang Zhongchang
Wpi Advanced Institute Of Materials Research Tohoku University
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Hirata Akihiko
Wpi Advanced Institute Of Materials Research Tohoku University
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Duan Xiaofeng
Beijing National Laboratory For Condensed Matter Physics Chinese Academy Of Science
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He Xiang
Beijing National Laboratory For Condensed Matter Physics Chinese Academy Of Science
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Wang Zhongchang
WPI Advanced Institute of Materials Research, Tohoku University, Sendai 980-8577, Japan
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Gu Lin
Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Science, Beijing, P. R. China
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Hirata Akihiko
WPI Advanced Institute of Materials Research, Tohoku University, Sendai 980-8577, Japan
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Chen Mingwei
WPI Advanced Institute of Materials Research, Tohoku University, Sendai 980-8577, Japan
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Duan Xiaofeng
Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Science, Beijing, P. R. China
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