Tunable polarization and magnetization at room-temperature in narrow bandgap Aurivillius Bi 6 Fe 2−x Co x/2 Ni x/2 Ti 3 O 18

Wang, Tiantian; Deng, Hongmei; Meng, Xiankuan; Cao, Hao; Zhou, Weixing; Shen, Peng; Zhang, Yuanyuan; Yang, Pingxiong; Chu, Junhao

doi:10.1016/j.ceramint.2017.04.010

Cited by 44 publications

(10 citation statements)

References 48 publications

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“…The polarization will significantly control spin texture, spin polarization and Fermi level, leading to the ferroelectric manipulation of magnetic behaviors. Over last few years, although there were some reports about ferroelectric tuned magnetism, 43,64–70 the FE dipole was mainly from ABO 3 FE films or bulk ferroelectrics, the issues such as the instability of FE structure or depolarization limit their practical applications in spintronics.…”

Section: Ferroelectric Controllable Applications In Physics and Chemimentioning

confidence: 99%

Two dimensional ferroelectrics: Candidate for controllable physical and chemical applications

Shang

Tang

Kou

2020

WIREs Comput Mol Sci

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The recent emerged two‐dimensional (2D) ferroelectrics have attracted tremendous research interests due to their promising application in nonvolatile electronics devices. The reversible electric polarization of ferroelectrics from the off‐centered positive and negative surfaces can effectively lift the band states near Fermi level and modulate the charge distribution, which therefore play important roles for the controllable electronic/magnetic properties and chemical reactions. Here, based on the latest revealed 2D ferroelectrics, we reviewed the research progress of ferroelectric controlled physical properties and chemical reactions, including the effects of reversible polarization on magnetic and electronic behaviors, polarization dependent photocatalytic water splitting and gas adsorptions. The associated applications in electronics, sensors and energy conversion are also discussed. At last, the possible research directions of 2D ferroelectrics have also been proposed. The review is expected to inspire the research interests of 2D ferroelectrics in the practical applications. This article is categorized under: Structure and Mechanism > Computational Materials Science Electronic Structure Theory > Density Functional Theory

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Section: Ferroelectric Controllable Applications In Physics and Chemimentioning

confidence: 99%

Two dimensional ferroelectrics: Candidate for controllable physical and chemical applications

Shang

Tang

Kou

2020

WIREs Comput Mol Sci

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“…According to Lou et al [25], when Ni 2+ and Nb 5+ ions are added to pure BT, the band gaps decrease from 2.8eV of pure BT to 1.2eV of doped BTNN, which clearly indicates that the band gaps are signi cantly reduced by doping with Ni 2+ ions, a transition metal. Yu et al [26] doped [27].…”

Section: Introductionmentioning

confidence: 99%

Band gap narrowing and electrical properties of (1-x)BaTiO3-xSrFe0.5Nb0.5O3 lead-free ceramics

Chen

Deng

Zheng

et al. 2021

J Mater Sci: Mater Electron

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The composite materials in the form of (1-x)BaTiO 3 -xSrFe 0.5 Nb 0.5 O 3 ((1-x)BT-xSFN) are synthesized via the solid-state reaction route. Structure, optical behaviors and electrical properties of (1-x)BT-xSFN are studied. It can be noted that the structure of the synthesized solid solution changes from the tetragonal phase to the cubic phase with increase of x-value. Due to the increase in content of double perovskite SFN, the optical band gaps of doped BT decrease to a minimum of 2.66 eV, which is smaller than that of pure BT (3.21 eV). However, the ferroelectric property deteriorates with the addition of dopants, which result from the lattice distortion caused by the substitution of Sr 2+ and Fe 3+ /Nb 5+ for Ba 2+ and Ti 4+ , respectively. These results provide new insights into the control of the structure, optical behaviors and ferroelectric properties in BT-based oxides.

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“…In addition, one of the reasons that ferroelectric materials have attracted great attention is their potential applications in functional devices such as photovoltaic devices [1,23,24]. However, the wide band gap of ferroelectric materials is one of the main obstacles that seriously hinder them in photovoltaic [27].…”

Section: Introductionmentioning

confidence: 99%

Band Gap Narrowing and Electrical Properties of (1-x)BaTiO3-xSrFe0.5Nb0.5O3 Lead-Free Ceramics

Chen

Deng

Zheng

et al. 2021

Preprint

Self Cite

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The composite materials in the form of (1-x)BaTiO3-xSrFe0.5Nb0.5O3((1-x)BT-xSFN) are synthesized via the solid-state reaction route. Structure, optical behaviors and electrical properties of (1-x)BT-xSFN are studied. It can be noted that the structure of the synthesized solid solution changes from the tetragonal phase to the cubic phase with increase of x-value. Due to the increase in content of double perovskite SFN, the optical band gaps of doped BT decrease to a minimum of 2.66 eV, which is smaller than that of pure BT (3.21 eV). However, the ferroelectric property deteriorates with the addition of dopants, which result from the lattice distortion caused by the substitution of Sr2+ and Fe3+/Nb5+ for Ba2+ and Ti4+, respectively. These results provide new insights into the control of the structure, optical behaviors and ferroelectric properties in BT-based oxides.

show abstract

Tunable polarization and magnetization at room-temperature in narrow bandgap Aurivillius Bi 6 Fe 2−x Co x/2 Ni x/2 Ti 3 O 18

Cited by 44 publications

References 48 publications

Two dimensional ferroelectrics: Candidate for controllable physical and chemical applications

Two dimensional ferroelectrics: Candidate for controllable physical and chemical applications

Band gap narrowing and electrical properties of (1-x)BaTiO3-xSrFe0.5Nb0.5O3 lead-free ceramics

Band Gap Narrowing and Electrical Properties of (1-x)BaTiO3-xSrFe0.5Nb0.5O3 Lead-Free Ceramics

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