Dark soliton based frequency dependent dielectric constant of ferroelectric materials | Zendy

Pradipta Giri | Zendy; Mrinal Kanti Mandal | Zendy

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Dark soliton based frequency dependent dielectric constant of ferroelectric materials

Author(s) -

Pradipta Giri,

Mrinal Kanti Mandal

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4900606

Subject(s) - dielectric , ferroelectricity , soliton , nonlinear system , condensed matter physics , physics , polarization (electrochemistry) , permittivity , optics , quantum mechanics , chemistry

A model of one dimensional array of the slab domain of a ferroelectric crystal and its polarization with time and space is explained by nonlinear Klein Gorden (KG) equation. The present article has been shown the slower moving dark soliton and faster moving bright soliton both move in nonlinear system with dispersive frequency that has significant as characterized frequency of ferroelectric medium. It is also shown that the dark soliton has an important role to control the magnitude of dielectric constant of the medium. The frequency dependent dielectric constant is evaluated from the nonlinear Klein Gorden (NLKG) equation using characterized frequency and it matches with the experimental results

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