Nonlinear dielectric response of BaBi4Ti4O15 ceramics

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Física Aplicada
dc.contributor	Universitat Politècnica de Catalunya. CEMAD - Caracterització Elèctrica de Materials i Dispositius
dc.contributor.author	Kumar, Sunil
dc.contributor.author	Ochoa Guerrero, Diego A.
dc.contributor.author	García García, José Eduardo
dc.contributor.author	Varma, K.B.R
dc.date	2013-02-05
dc.identifier.citation	Kumar, S. [et al.]. Nonlinear dielectric response of BaBi4Ti4O15 ceramics. "AIP Conference proceedings", 05 Febrer 2013, vol. 1512, p. 998-999.
dc.identifier.citation	1551-7616
dc.identifier.citation	10.1063/1.4791379
dc.identifier.uri	http://hdl.handle.net/2117/22731
dc.language.iso	eng
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Física
dc.subject	Dielectrics
dc.subject	Ferroelectric devices
dc.subject	Ceramics
dc.subject	BaBi4Ti4O15 Nonlinear dielectric properties Relaxor ferroelectrics Dielectric response Permittivity Ceramics Dielectrics Electrics fields
dc.subject	Dielèctrics
dc.subject	Ferroelectricitat
dc.subject	Ceramics
dc.title	Nonlinear dielectric response of BaBi4Ti4O15 ceramics
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Nonlinear dielectric response of BaBi 4 Ti 4 O 15 ceramics synthesized via the conventional solid-state reaction route has been monitored over a wide range of electric field strengths (E 0 = 0.5-5 kV/cm). Dielectric permittivity was found to increase linearly within the range of applied field. Rayleigh relations were employed to interpret the nonlinear dielectric response and the contribution of irreversible domain wall motion to the macroscopic permittivity was separated. The values of room temperature Rayleigh dielectric coefficient (a) and relative initial permittivity (e'init# were found to be 2.28±0.02 cm/kV and 146.10±0.07, respectively. A reasonable agreement between the simulated and measured polarization-electric field #P-E# hysteresis loops was observed at an applied electric field of 5 kV/cm.

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