Ganguli, AK and Jayadevan, KP and Subbanna, GN and Varma, KBR (1995) Preparation and dielectric properties of zinc and cadmium doped barium tantalates, Ba3Zn1?xCdxTa2O9. In: Solid State Communications, 94 (1). pp. 13-16.
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Members of the Ba2Zn1-xCdxTa2O9 (0 less than or equal to x less than or equal to 1) series have been synthesized by solid state reactions at 1473K. Powder x-ray diffraction studies show a cubic perovskite cell with a similar to 4.1 Angstrom which increases with increase in x. Electron diffraction studies show the presence of hexagonal ordered perovskite structure in addition to the cubic structure seen by x-rays, the x = 0.5 composition showing more ordered crystallites. These samples show high dielectric constants with a maximum (epsilon(r) = 30 at 1 kHz) for the x = 0.5 member. The dielectric loss increases with increase in x at all the frequencies under study.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||A.insulators;C.crystal structure and symmetry;D.dielectric response|
|Department/Centre:||Division of Chemical Sciences > Materials Research Centre|
|Date Deposited:||02 Jun 2011 08:44|
|Last Modified:||02 Jun 2011 08:44|
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