The synthesis under controlled oxygen partial pressure and the characterization of a layered perovskite system Sr(2)V(1-x)Mo(x)O(4).

J Phys Condens Matter

Nanoelectronics Research Institute, Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan. Department of Applied Electronics, Tokyo University of Science, Noda, Chiba 278-8510, Japan.

Published: July 2009

We have successfully synthesized Sr(2)V(1-x)Mo(x)O(4) from x = 0.3 to 1.0 by an improved process. The layered compound Sr(2)VO(4) is an antiferromagnetic insulator with S = 1/2, while the isostructural Sr(2)MoO(4) is a Pauli paramagnetic metal. The solid solution Sr(2)V(1-x)Mo(x)O(4) of these materials is expected to show a metal-insulator transition. In this paper we report the synthetic process and the results of the magnetic susceptibility and the electrical resistivity. The selection of the starting materials and the adjustment of O(2) partial pressure of less than 10(-12) atm were indispensable for the synthesis. The reducing conditions during the sintering had been determined rationally, according to thermodynamical analysis. Kondo-like behavior in both resistivity and magnetic susceptibility were observed in a limited range of V-containing samples.

Download full-text PDF

Source
http://dx.doi.org/10.1088/0953-8984/21/28/285601DOI Listing

Publication Analysis

Top Keywords

partial pressure
8
magnetic susceptibility
8
synthesis controlled
4
controlled oxygen
4
oxygen partial
4
pressure characterization
4
characterization layered
4
layered perovskite
4
perovskite system
4
system sr2v1-xmoxo4
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!