Subramanian, M. A. ; Subba Rao, G. V. (1980) Synthesis and electrical properties of perovskite oxides, LnB0.75B'0.25O3 Journal of Solid State Chemistry, 31 (3). pp. 329-335. ISSN 0022-4596
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0022-4596(80)90095-X
Abstract
A series of ordered perovskite oxides of the type Ln2+0.75B'6+0.25O3 (Ln = rate earth or Y; B = Mn, Fe, Co, Ni; B' = Mo, W, Re) has been synthesized and characterized by X-ray analysis and density measurements. Compounds with Ln = La are easily formed in all cases as single-phase materials and have either cubic or orthorhombic symmetry. When Ln = rare earth or Y, single-phase materials are formed only in the case of LnFe0.75Mo0.25O3 and these possess an orthorhombic structure. All the phases tested are extrinsic semiconductors in the range of 25-350°C, with Ea ranging from 0.1 to 0.4 eV. Resistivity of the Ln(Fe, Mo)O3 series of oxides increases from Ln = La to Ln = Lu. Ni-containing compounds are p type, while those containing Fe or Co in the B sites are n type.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 52061 |
| Deposited On: | 02 Aug 2011 08:03 |
| Last Modified: | 02 Aug 2011 08:03 |
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