Department of Nanomaterials and Nanochemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
Chem Asian J. 2011 Dec 2;6(12):3230-5. doi: 10.1002/asia.201100292. Epub 2011 Sep 5.
We found a linear relationship between the metal-insulator transition (MIT) temperature and the A(+) ionic radius of the beta-A(0.33)V(2)O(5) bronze family, leading our attention to beta-K(0.33)V(2)O(5) which has been neglected for a long time. We have introduced a facile hydrothermal method to obtain the single-crystalline beta-K(0.33)V(2)O(5) nanorods. As expected, both the temperature-dependence of the resistivity and magnetization demonstrated MITs at about 72 K for beta-K(0.33)V(2)O(5), thus matching well with the linear relationship described above. The beta-K(0.33)V(2)O(5) was assigned as a new member of the beta-A(0.33)V(2)O(5) bronze family for their similar crystal and electronic structures and their MIT property; this addition enriches the beta-A(0.33)V(2)O(5) bronze family.
我们发现金属-绝缘体转变（MIT）温度与β-A(0.33)V(2)O(5)青铜家族的 A(+)离子半径之间存在线性关系，这引起了我们对β-K(0.33)V(2)O(5)的关注，而β-K(0.33)V(2)O(5)长期以来一直被忽视。我们采用了一种简便的水热法来获得单晶β-K(0.33)V(2)O(5)纳米棒。正如预期的那样，β-K(0.33)V(2)O(5)的电阻率和磁化率的温度依赖性都在约 72 K 处表现出 MIT，这与上述线性关系很好地吻合。β-K(0.33)V(2)O(5)被指定为β-A(0.33)V(2)O(5)青铜家族的新成员，因为它们具有相似的晶体和电子结构以及 MIT 性质；这一补充丰富了β-A(0.33)V(2)O(5)青铜家族。
