Mohan Ram, R. A. ; Gopalakrishnan, J. (1986) Mixed valency in the high-temperature phases of transition metal molybdates, AMoO4 (A = Fe, Co, Ni) Proceedings of the Indian National Science Academy - Part A: Physical Sciences, 96 (5). pp. 291-296. ISSN 0370-0046
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Abstract
Transition metal molybdates of the formula AMoO4 where A = Fe, Co or Ni exhibit a first-order phase transition between 670 K-970 K. An investigation of the lowtemperature (Lr) and high-temperature {fir) phases by x-ray photoelectron spectroscopy, x-ray absorption spectroscopy, magnetic susceptibility and other physical methods shows that the phase transition is associated with a valence change of the type A2+ + Moδ+⇋ A3++Mo5+ in the cases of iron and cobalt molybdates.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian National Science Academy. |
| Keywords: | Transition Metal Molybdates; Mixed Valency; High-temperature Phases |
| ID Code: | 84367 |
| Deposited On: | 25 Feb 2012 05:44 |
| Last Modified: | 25 Feb 2012 05:44 |
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