DOI: 10.1063/1.2423228. Reduced ferroelectric coercivity in multiferroic Bi0.825Nd0.175FeO3 thin film

Reduced ferroelectric coercivity in multiferroic Bi0.825Nd0.175FeO3 thin film

10.1063/1.2423228

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Bi 0.825 Nd 0.175 Fe O 3 (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 Fe2+ ions and its twinborn oxygen vacancies, both samples show low dielectric losses of &lt;0.026 at 100Hz and high maximum ferroelectric polarizations of ∼34μC∕cm2. The ferroelectric coercive field of BNFO is reduced by ∼40%, reaching a low value of 235kV∕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 of both samples originate in the stereochemical activity of the Bi lone electron pair. Weak ferromagnetism is observed in both samples as a result of the limited amount of Fe2+ ions and γ-Fe2O3 impurity.

Bibliography

Yuan, G. L., Or, S. W., Chan, H. L. W., & Liu, Z. G. (2007). Reduced ferroelectric coercivity in multiferroic Bi0.825Nd0.175FeO3 thin film. Journal of Applied Physics, 101(2).

Authors 4

G. L. Yuan (first)
Siu Wing Or (additional)
Helen Lai Wa Chan (additional)
Z. G. Liu (additional)

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Dates

Type	When
Created	18 years, 7 months ago (Jan. 18, 2007, 6:14 p.m.)
Deposited	2 years ago (July 26, 2023, 7:01 p.m.)
Indexed	3 weeks, 4 days ago (July 30, 2025, 6:48 a.m.)
Issued	18 years, 7 months ago (Jan. 15, 2007)
Published	18 years, 7 months ago (Jan. 15, 2007)
Published Online	18 years, 7 months ago (Jan. 17, 2007)
Published Print	18 years, 7 months ago (Jan. 15, 2007)

Funders 0

None

BibTeX

@article{Yuan_2007, title={Reduced ferroelectric coercivity in multiferroic Bi0.825Nd0.175FeO3 thin film}, volume={101}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.2423228}, DOI={10.1063/1.2423228}, number={2}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Yuan, G. L. and Or, Siu Wing and Chan, Helen Lai Wa and Liu, Z. G.}, year={2007}, month=jan }

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  "abstract": "<jats:p>Bi 0.825 Nd 0.175 Fe O 3 (BNFO) thin film is grown on Pt\u2215TiO2\u2215SiO2\u2215Si substrate by pulsed laser deposition, and its multiferroic properties are compared with those of BiFeO3 (BFO) thin film. With limited Fe2+ ions and its twinborn oxygen vacancies, both samples show low dielectric losses of &amp;lt;0.026 at 100Hz and high maximum ferroelectric polarizations of \u223c34\u03bcC\u2215cm2. The ferroelectric coercive field of BNFO is reduced by \u223c40%, reaching a low value of 235kV\u2215cm, compared to that of BFO due to the increased ratio of 180\u00b0 and curved ferroelectric domains to total ferroelectric domains and better nucleation of the ferroelectric domains at the BNFO\u2215Pt interface. The Raman scattering spectra confirm that the ferroelectric polarizations of both samples originate in the stereochemical activity of the Bi lone electron pair. Weak ferromagnetism is observed in both samples as a result of the limited amount of Fe2+ ions and \u03b3-Fe2O3 impurity.</jats:p>",
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