In situ X-ray powder diffraction, synthesis, and magnetic properties of InVO3

✍ Scribed by Rylan J. Lundgren; Lachlan M.D. Cranswick; Mario Bieringer

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 530 KB
• Volume: 179
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1016/j.jssc.2006.07.037

✦ Synopsis

We report the first synthesis and high-temperature in situ X-ray diffraction study of InVO 3 . Polycrystalline InVO 3 has been prepared via reduction of InVO 4 using a carbon monoxide/carbon dioxide buffer gas. InVO 3 crystallizes in the bixbyite structure in space group IaÀ3 (206) with a ¼ 9.80636(31) A ˚with In 3+ /V 3+ disorder on the (8b) and (24d) cation sites. In situ powder X-ray diffraction experiments and thermal gravimetric analysis in a CO/CO 2 buffer gas revealed the existence of the metastable phase InVO 3 . Bulk samples with 98.5(2)% purity were prepared using low-temperature reduction methods. The preparative methods limited the crystallinity of this new phase to approximately 225(50) A ˚. Magnetic susceptibility and neutron diffraction experiments suggest a spin-glass ground state for InVO 3 .