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IJPAP Vol.50(12) [December 2012] >
| Title: | Polarizability factor for Na1-xKxTaO3 mixed ceramics |
| Authors: | Uniyal, Manish
Bhatt, S C
Gairola, R P |
| Keywords: | Polarizability
Ferroelectrics
Model Hamiltonian |
| Issue Date: | Dec-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Considering a
quadratic anharmonic model Hamiltonian and using double time temperature
dependent Green’s function method and Dyson’s equation treatment, expression
for polarizability in the frequency response for mixed perovskite type
ferroelectrics has been obtained. Using the experimentally observed temperature
dependent dielectic constant, loss tangent, soft mode frequency, width for Na1-xKxTaO3 (x = 0, 0.2, 0.4, 0.5 and 0.6)
the polarizability has been calculated for these samples at 10 kHz |
| Page(s): | 915-917 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(12) [December 2012]
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