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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication13
  4. Synthesis and electrical properties of Ln<inf>2</inf>(V<inf> 4 3</inf>W<inf> 2 3</inf>)O<inf>7</inf> pyrochlores
 
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Synthesis and electrical properties of Ln<inf>2</inf>(V<inf> 4 3</inf>W<inf> 2 3</inf>)O<inf>7</inf> pyrochlores

Date Issued
01-01-1979
Author(s)
Subramanian, M. A.
Aravamudan, G.
Rao, G. V.Subba
DOI
10.1016/0025-5408(79)90089-8
Abstract
Mixed oxides of the type Ln2(V3+ 4 3W6+ 2 3)O7, Ln=GdLu, Y have been synthesized in vacuum via solid state reactions of the constituent oxides at 1150-1300°C. The compounds, which crystallize in cubic pyrochlore structure (a ∼ 10.2 A ̊), have been characterized by X-ray, density and wet chemical analysis. Electrical resistivity and Seebeck coefficient measurements show the phases to be p-type extrinsic semiconductors with low energies of activation possibly exhibiting hopping-type behavior. © 1979.
Volume
14
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