DYNAMIC PROPERTIES OF DIELECTRIC SUSCEPTIBILITY IN FERROELECTRIC THIN FILMS

Lian Cui, Haiying Cui, Chunmei Wu, Guihua Yang, Zelong He, Yuling Wang and Jixin Che
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Lian Cui: School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, P. R. China
Haiying Cui: School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, P. R. China
Chunmei Wu: School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, P. R. China
Guihua Yang: School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, P. R. China
Zelong He: #x2020;School of Electrical and Information Engineering, Heilongjiang Institute of Technology, Harbin 150050, P. R. China
Yuling Wang: School of Mechatronics Engineering, Daqing Normal University, Daqing 163712, P. R. China
Jixin Che: #x2021;Ordnance Engineering Department, Air Force Aviation University, Changchun, 130022, P. R. China

Surface Review and Letters (SRL), 2016, vol. 23, issue 03, 1-6

Abstract: In this paper, frequency, temperature, film thickness, surface effects, and various parameters dependence of dielectric susceptibility is investigated theoretically for ferroelectric thin films by the modified Landau theory under an AC applied field. The dielectric susceptibility versus AC applied field shows butterfly-shaped behavior, and depends strongly on the frequency and amplitude of the field and temperature. Our study shows that the existence of the surface transition layer can depress the dielectric susceptibility of a ferroelectric thin film. These results are well consistent with the phenomena reported in experiments.

Keywords: Ferroelectric thin film; dielectric susceptibility; applied field (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0218625X16500104

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