Reduced ferroelectric coercivity in multiferroic Bi[sub 0.825]Nd[sub 0.175]FeO₃ thin film

Yuan, GL
Or, DSW
Chan, HLW
Liu, Z

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Publication date

January 2007

Publisher

AIP Publishing

Journal

Journal of Applied Physics

Abstract

Bi[sub 0.825]Nd[sub 0.175]FeO₃ (BNFO) thin film is grown on Pt/TiO₂/SiO₂/Si substrate by pulsed laser deposition, and its multiferroic properties are compared with those of BiFeO₃(BFO) thin film. With limited Fe[sup 2+] ions and its twinborn oxygen vacancies, both samples show low dielectric losses of <0.026 at 100 Hz and high maximum ferroelectric polarizations of ~34 µC/cm². The ferroelectric coercive field of BNFO is reduced by ~40%, reaching a low value of 235 kV/cm, compared to that of BFO due to the increased ratio of 180° and curved ferroelectric domains to total ferroelectric domains and better nucleation of the ferroelectric domains at the BNFO/Pt interface. The Raman scattering spectra confirm that the ferroelectric polarizations ...

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Reduced ferroelectric coercivity in multiferroic Bi[sub 0.825]Nd[sub 0.175]FeO₃ thin film

Abstract

Extracted data

Reduced ferroelectric coercivity in multiferroic Bi[sub 0.825]Nd[sub 0.175]FeO₃ thin film

Abstract

Extracted data

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