Enhanced polarization and dielectricity in BaTiO<sub>3</sub>:NiO nanocomposite films modulated by the microstructure

Chen, M. J.; Ning, Xiaojuan; Wang, S. F.; Fu, Guangsheng

doi:10.1039/c7ra06627a

Cited by 10 publications

(3 citation statements)

References 85 publications

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“…The hysteresis loops in Figure 6(b) show the linear relationship between the applied voltage (30–150 kV cm −1 ) and polarization, and the remanent polarization of ~3.8 nC cm −2 at ~150 kV cm −1 . This value of remanent polarization was quite small compared to previously reported works [19–22]. The major reason of the small value obtained in this work is likely the unexpected porous structure of the nanocomposite.…”

Section: Resultscontrasting

confidence: 79%

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

Kawamura

Ohara

Tan

et al. 2018

Science and Technology of Advanced Materials

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We report a novel and inexpensive fabrication process of multiferroic nanocomposite via liquid phase using an anodic alumina template. The sol-gel spin-coating technique was used to coat the template with ferrimagnetic CoFe2O4. By dissolving the template with NaOH aqueous solution, a unique nanotube array structure of CoFe2O4 was obtained. The CoFe2O4 nanotube arrays were filled with, and sandwiched in, ferroelectric BaTiO3 layers by a sol-gel spin-coating method to obtain the composite. Its multiferroicity was confirmed by measuring the magnetic and dielectric hysteresis loops.

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Section: Resultscontrasting

confidence: 79%

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

Kawamura

Ohara

Tan

et al. 2018

Science and Technology of Advanced Materials

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“…Where, according to Langmuir-Child law the conduction mechanism based on space charge limited (SCL) emission, the J-E characteristics for metal-ferroelectric-metal (MFM) capacitor system should follow the polynomial type of variation [26]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Impact of Annealing Temperature on Electrical Properties of Sol-gel Ba0.90Gd0.10TiO3 Thin Films

Saif

Teh

Poopalan

2022

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Ba0.90Gd0.10TiO3 (BGT) thin films have been fabricated in MFM configuration via sol-gel technique at the different annealing temperature. The dielectric parameters of the films are measured using Impedance Analyzer as a function of frequency. It is found that, at frequency 1 kHz, the measured value of e increases from 57 to 264 as the annealing temperature increases from 600 °C to 900 °C, which is correlated to the improved crystallinity and grain size increment. The ferroelectric hysteresis of the films is analyzed using Sawyer-Tower circuit that shows an enhancement for the ferroelectric properties with annealing temperature, which is also confirmed using C-V characteristics. The leakage current of the films is evaluated via Semiconductor Parameter Analyzer (SPA), which shows that at a certain electric field, the leakage current density increases as the annealing temperature increases, that is attributed to the crystallinity and grain size improvement. The conduction mechanism of the films is deeply investigated through different models to find out that the space charge limited conduction (SCLC) mechanism is the controlling conduction process.

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“…A near doubling of P r has also been shown in BaTiO 3 –NiO VAN films. 103 A giant enhancement of piezoelectric response is also possible in VAN films ( Fig. 5c ).…”

Section: Ferroelectric Phenomena In Van Filmsmentioning

confidence: 89%

Interface-related phenomena in epitaxial complex oxide ferroics across different thin film platforms: opportunities and challenges

MacManus‐Driscoll

2023

Mater. Horiz.

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Enhanced polarization and dielectricity in BaTiO₃:NiO nanocomposite films modulated by the microstructure

Abstract: Parallel and vertical interfaces in vertically and parallelly aligned nanocomposite thin films have been shown to be an effective method to manipulate functionalities.

Cited by 10 publications

References 85 publications

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

Impact of Annealing Temperature on Electrical Properties of Sol-gel Ba0.90Gd0.10TiO3 Thin Films

Interface-related phenomena in epitaxial complex oxide ferroics across different thin film platforms: opportunities and challenges

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Enhanced polarization and dielectricity in BaTiO3:NiO nanocomposite films modulated by the microstructure

Abstract: Parallel and vertical interfaces in vertically and parallelly aligned nanocomposite thin films have been shown to be an effective method to manipulate functionalities.

Cited by 10 publications

References 85 publications

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

Impact of Annealing Temperature on Electrical Properties of Sol-gel Ba0.90Gd0.10TiO3 Thin Films

Interface-related phenomena in epitaxial complex oxide ferroics across different thin film platforms: opportunities and challenges

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Enhanced polarization and dielectricity in BaTiO₃:NiO nanocomposite films modulated by the microstructure