Semiconductor-metal transition in Ti3O5

Rao, C. N. R. ; Ramdas, S. ; Loehman, R. E. ; Honig, J. M. (1971) Semiconductor-metal transition in Ti3O5 Journal of Solid State Chemistry, 3 (1). pp. 83-88. ISSN 0022-4596

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Ti3O5 shows a first-order phase transition from the monoclinic structure to the pseudobrookite structure at 448°K, at which temperature a magnetic susceptibility anomaly has been reported earlier in the literature. There is an electrical conductivity discontinuity accompanying the phase transition. Incorporation of Fe stabilizes the high-temperature phase of Ti3O5; while with 2% Fe the transition temperature and enthalpy change are lowered, with 5% Fe there is no transition. Mössbauer spectra of 2% Fe-doped Ti3O5 are similar below and above the transition temperature and show no evidence for magnetic ordering in the low-temperature phase. These results are compared to the VO2 transition.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:41909
Deposited On:31 May 2011 12:57
Last Modified:31 May 2011 12:57

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