Synthetic beta‐K0.33V2O5 Nanorods: A Metal–Insulator Transition in Vanadium Oxide Bronze |
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| Authors: | Dr. Xiaodong Zhang Prof. Wensheng Yan Prof. Yi Xie |
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| Affiliation: | 1. Department of Nanomaterials and Nanochemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026 (P. R. China), Fax: (+86)?551‐3606266;2. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029 (P. R. China) |
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| Abstract: | We found a linear relationship between the metal–insulator transition (MIT) temperature and the A+ ionic radius of the beta‐A0.33V2O5 bronze family, leading our attention to beta‐K0.33V2O5 which has been neglected for a long time. We have introduced a facile hydrothermal method to obtain the single‐crystalline beta‐K0.33V2O5 nanorods. As expected, both the temperature‐dependence of the resistivity and magnetization demonstrated MITs at about 72 K for beta‐K0.33V2O5, thus matching well with the linear relationship described above. The beta‐K0.33V2O5 was assigned as a new member of the beta‐A0.33V2O5 bronze family for their similar crystal and electronic structures and their MIT property; this addition enriches the beta‐A0.33V2O5 bronze family. |
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| Keywords: | hydrothermal synthesis metal– insulator transition mixed‐valence compounds nanorods vanadium oxide bronze |
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