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	2012
dc.identifier.citation	Kumar, S. [et al.]. Nonlinear dielectric response of BaBi4Ti4O15 ceramics. A: SOLID STATE PHYSICS SYMPOSIUM. "PROCEEDINGS OF THE 57TH DAE SOLID STATE PHYSICS SYMPOSIUM 2012". Bombay: American Institute of Physics (AIP), 2012, p. 998-999.
dc.identifier.citation	978-0-7354-1133-3
dc.identifier.citation	10.1063/1.4791379
dc.identifier.uri	http://hdl.handle.net/2117/19500
dc.language.iso	eng
dc.publisher	American Institute of Physics (AIP)
dc.relation	http://proceedings.aip.org/resource/2/apcpcs/1512/1/998_1?isAuthorized=no
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	Ceramics
dc.subject	bismuth compounds
dc.subject	dielectric hysteresis
dc.subject	dielectric polarisation
dc.subject	electric domain walls
dc.subject	ferroelectric ceramics
dc.subject	materials preparation
dc.subject	permittivity
dc.subject	Rayleigh scattering
dc.subject	relaxor ferroelectrics
dc.subject	Dielèctrics
dc.subject	Materials ceràmics
dc.title	Nonlinear dielectric response of BaBi4Ti4O15 ceramics
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	Nonlinear dielectric response of BaBi4Ti4O15 ceramics synthesized via the conventional solid-state reaction route has been monitored over a wide range of electric field strengths (E0 = 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 (α) and relative initial permittivity (ε′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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