Preparation and Properties of the System Fe sub 1-x Cr sub x NbO4.
Abstract
Members of the system Fe sub 1-x Cr sub x NbO4 were prepared and their magnetic and electronic properties investigated. It was shown that chromium substitution favored the formation of the rutile structure, which resulted in a decrease in the electrical conductivity because of randomization of the transition metal ions in the structure. The replacement of a few percent of Fe3(+) with Cr3(+) caused a significant lowering of the lowest optical band gap, whereas the higher energy transitions remained essentially unchanged. This resulted in increased response to the longer wavelengths of the solar spectrum. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 30, 1981
- Accession Number
- ADA096754
Entities
People
- Aaron Wold
- B. Khazai
- Kirby Dwight
- Robert N. Kershaw
Organizations
- Brown University