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Title: Field dependent dielectric behaviour of BaTiO3 SrTiO3 and KTaO3 perovskites
Authors: Lingwal, D S
Naithani, U C
Kumar, Ashok
Semwal, B S
Issue Date: Oct-2001
Publisher: NISCAIR-CSIR, India
Abstract: The electric field dependence of the complex dielectric constant in anharmonic ferroelectric crystals are calculated in its paraelectric phase from the Silverman-Joseph Hamiltonian augmented with fourth order phonon co-ordinate, using double time Green's functions technique. The frequency, temperature and electric field dependence dielectric constant of BaTiO3 SrTiO3 and KTaO3 crystals have been discussed. Dielectric constant increases with increase of applied field in BaTiO3 SrTiO3 and KTaO3 cases.
Page(s): 673-678
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.39(10) [October 2001]

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