Effects of Ho, Mn co-doping on ferroelectric fatigue of BiFeO3 thin films

Chen, Jieyu; Xing, Wenyu; Qi, Yun; Gao, Wei; Nie, Chenghong; Zhao, Shifeng

doi:10.1007/s13391-015-5047-4

Cited by 21 publications

(9 citation statements)

References 31 publications

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“…Additionally, the trend of the measured switched polarization values of the epitaxial BiFeO 3 SL thin films remained steady after 10 5 cycles (Figure S3). It is concluded that the epitaxial BiFeO 3 SL thin films achieved a significant reduction of the leakage current owing to the Ce substitution introduced by the insertion layers, which are consistent with previously reported results. , …”

Section: Resultssupporting

confidence: 92%

“…It is concluded that the epitaxial BiFeO 3 SL thin films achieved a significant reduction of the leakage current owing to the Ce substitution introduced by the insertion layers, which are consistent with previously reported results. 45,46 Finally, Figure 6a shows the frequency dependence of the dielectric constant for the epitaxial BiFeO 3 and BiFeO 3 SL thin films measured in the frequency range of 10 kHz to 1 MHz. Here, for both films, the dielectric constant decreases smoothly with the increase of frequency.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO₃ Thin Films via Substitutional Doping Effect

et al. 2019

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Although there is considerable interest in BiFeO3 owing to its versatile physical properties, which make it suitable for a wide range of applications, its high leakage current is a significant limitation. Among various methods for reducing the leakage current, substitution with transition-metal or rare-earth elements is widely recognized as the most effective approach. Herein, to enable in-depth studies of the physical properties of BiFeO3, high-quality epitaxial BiFeO3 thin films with a low leakage current must be formed. However, owing to the difficulty of controlling the element doping when pulsed laser deposition is used for epitaxial thin-film growth, studies on substitutional doping based on epitaxial BiFeO3 thin films have not been systematically carried out. In this regard, we establish an innovative approach for overcoming the high leakage current of BiFeO3 by fabricating artificially engineered superlattice-based epitaxial BiFeO3 thin films in which there is a significant reduction of the leakage current. The control of the element doping in epitaxial BiFeO3 thin films is easily regulated precisely at the atomic-scale level. The results of this study strongly suggest that superlattice-based epitaxial BiFeO3 thin films can be a cornerstone for exploring the reliable fundamental physical properties of substitutional doping in epitaxial BiFeO3 thin films.

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Section: Resultssupporting

confidence: 92%

Section: ■ Results and Discussionmentioning

confidence: 99%

Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO₃ Thin Films via Substitutional Doping Effect

et al. 2019

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“…Unfortunately it is difficult to produce BiFeO3 in single phase, which can cause a large current leakage arising from non stoichiometric. BiFe03 has high Curie (Tc~830 °C) and Neel temperatures (TN~367 0c), has G type antiferromagnetic spiral spin perovskite structure (space group R3c) with aperiod of 62 nm [2,3]. [6].…”

Section: Introductionmentioning

confidence: 99%

Improving Magnetic Properties of BiFeO3-BaFe12O19 Solid Solution by Different Sintering Time and Temperatures of Sol-Gel Method

Suastiyanti¹,

Maulida²,

Wijaya³

2019

AJAS

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Synthesis of BiFeO3-BaFe12O19 solid solution is aimed to enhanced magnetic properties of the material which can improve the quality of multiferroic properties of material. As we know that BiFeO3 is a multiferroic material if it is in single phase but unfortunately it is difficult to produce BiFeO3 in single phase, which can cause a large current leakage arising from non stoichiometric. It used sol gel method to produce BiFeO3-BaFe12O19 solid solution with weight ratio of 1;1. To know magnetic properties, it was used permagraph test which is type of MPS magnet â€“ Physic EP3 â€“ Permagraph L . The sintering temperature was 750, 800 and 850oC for 8, 10 and 12 hours respectively. There is no regularity in increasing and decreasing of remanent and coersivity properties with increasing sinter temperatures and time of sintering but there is an increasing magnetic energy with increasing sinter temperatures and time of sintering. The highest value of magnetic energy, 10.716 GkA/mÂ belongs to powder sintered at 850oC for 12 hours.

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“…Commonly, rare earth doping is an effective method to do so. 6 Compared with other rare earth dopants, the ion radius of Ho 3+ is near that of the Bi 3+ ion; thus, it is easy to achieve substitution doping. As a known grain growth inhibitor, Ho 3+ dopants suppress grain growth and can form smaller grain size.…”

Section: Introductionmentioning

confidence: 99%

Magnetoelectric fatigue of Ho-doped Bi₅Ti₃FeO₁₅ films under the action of bipolar electrical cycling

2016

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Effects of Ho, Mn co-doping on ferroelectric fatigue of BiFeO3 thin films

Cited by 21 publications

References 31 publications

Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO₃ Thin Films via Substitutional Doping Effect

Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO₃ Thin Films via Substitutional Doping Effect

Improving Magnetic Properties of BiFeO<sub>3</sub>-BaFe<sub>12</sub>O<sub>19</sub> Solid Solution by Different Sintering Time and Temperatures of Sol-Gel Method

Magnetoelectric fatigue of Ho-doped Bi₅Ti₃FeO₁₅ films under the action of bipolar electrical cycling

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Effects of Ho, Mn co-doping on ferroelectric fatigue of BiFeO3 thin films

Cited by 21 publications

References 31 publications

Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO3 Thin Films via Substitutional Doping Effect

Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO3 Thin Films via Substitutional Doping Effect

Improving Magnetic Properties of BiFeO<sub>3</sub>-BaFe<sub>12</sub>O<sub>19</sub> Solid Solution by Different Sintering Time and Temperatures of Sol-Gel Method

Magnetoelectric fatigue of Ho-doped Bi5Ti3FeO15 films under the action of bipolar electrical cycling

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Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO₃ Thin Films via Substitutional Doping Effect

Enhancement of Ferroelectric Properties of Superlattice-Based Epitaxial BiFeO₃ Thin Films via Substitutional Doping Effect

Magnetoelectric fatigue of Ho-doped Bi₅Ti₃FeO₁₅ films under the action of bipolar electrical cycling