Evolution of dielectric and ferroelectric relaxor states in Al3+-doped BaTiO3 | Zendy

K. Vani | Zendy; V. Kumar | Zendy

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Evolution of dielectric and ferroelectric relaxor states in Al3+-doped BaTiO3

Author(s) -

K. Vani,

V. Kumar

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4913918

Subject(s) - ferroelectricity , dielectric , materials science , doping , condensed matter physics , dielectric response , phase transition , relaxor ferroelectric , phase (matter) , ion , chemistry , optoelectronics , physics , organic chemistry

In ferroelectric BaTiO3, we report the evolution of the Dielectric Relaxor and Ferroelectric Relaxor states as a function of B-site doped Al3+ concentration. The relaxor states occur after the paraelectric-ferroelectric phase transition upon cooling. Two different mechanisms are proposed; one based on migration of oxygen vacancies for symmetry-confirmation and the other based on disruption of long-range ferroelectric order by high concentrations of Al3+ ions at the B-site

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