Synthetic beta-K(0.33)V2O5 nanorods: a metal-insulator transition in vanadium oxide bronze

Xiaodong Zhang; Wensheng Yan; Yi Xie

doi:10.1002/asia.201100292

Synthetic beta-K(0.33)V2O5 nanorods: a metal-insulator transition in vanadium oxide bronze

Chem Asian J. 2011 Dec 2;6(12):3230-5. doi: 10.1002/asia.201100292. Epub 2011 Sep 5.

Authors

Xiaodong Zhang¹, Wensheng Yan, Yi Xie

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, PR China.

PMID: 21898837
DOI: 10.1002/asia.201100292

Abstract

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.