Growth of highly oriented orthorhombic phase of Bi2Fe4O9 thin films by pulsed laser deposition

Ameer, Shaan; Jindal, Kajal; Tomar, Monika; Jha, Pradip K.; Gupta, Vinay

doi:10.1016/j.matpr.2021.04.543

Cited by 4 publications

(6 citation statements)

References 26 publications

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“…The range of wavelengths corresponds with 2-3 eV [79]. The photocatalytic [85,87] properties prove that the material has a lower bandgap potential [88], which is a considerable advantage, and make the material attractive for light detection sensors and photovoltaic application [88].…”

Section: Bismuth Mullite Materialsmentioning

confidence: 99%

“…Bismuth ferrite is represented in two different structures: perovskite cell and Selenite material. Iron Selenite material (Bi25FeO40) [87,89] has been encountered during the synthesis of pure phase BFO material. Selenite draws a lot of attention nowadays due to its The photocatalytic [85,87] properties prove that the material has a lower bandgap potential [88], which is a considerable advantage, and make the material attractive for light detection sensors and photovoltaic application [88].…”

Section: Iron Selenite Materialsmentioning

confidence: 99%

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Brief Theoretical Overview of Bi-Fe-O Based Thin Films

Misiurev

Kaspar²,

Holcman³

2022

Materials

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This paper will provide a brief overview of the unique multiferroic material Bismuth ferrite (BFO). Considering that Bismuth ferrite is a unique material which possesses both ferroelectric and magnetic properties at room temperature, the uniqueness of Bismuth ferrite material will be discussed. Fundamental properties of the material including electrical and ferromagnetic properties also will be mentioned in this paper. Electrical properties include characterization of basic parameters considering the electrical resistivity and leakage current. Ferromagnetic properties involve the description of magnetic hysteresis characterization. Bismuth ferrite can be fabricated in a different form. The common forms will be mentioned and include powder, thin films and nanostructures. The most popular method of producing thin films based on BFO materials will be described and compared. Finally, the perspectives and potential applications of the material will be highlighted.

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Section: Bismuth Mullite Materialsmentioning

confidence: 99%

Section: Iron Selenite Materialsmentioning

confidence: 99%

Brief Theoretical Overview of Bi-Fe-O Based Thin Films

Misiurev

Kaspar²,

Holcman³

2022

Materials

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“…However, the indirect charge transfer mechanism is thought to predominate at low room temperatures [35]. In the case of Bi 2 Fe 4 O 9 films, the optical band gap is in the range of 2.05-2.2 eV [36][37][38]. From the theoretical studies of density functional theory [37], the band gap of Bi 2 Fe 4 O 9 is considered to be indirect.…”

Section: Almentioning

confidence: 99%

“…In the case of Bi 2 Fe 4 O 9 films, the optical band gap is in the range of 2.05-2.2 eV [36][37][38]. From the theoretical studies of density functional theory [37], the band gap of Bi 2 Fe 4 O 9 is considered to be indirect. For the Bi 2 Fe 4 O 9 -BiFeO 3 sample, a band gap of 2.1 eV was observed [39].…”

Section: Almentioning

confidence: 99%

Exploring RF Magnetron Sputtering Growth Composite Thin Film BiFeO3-Bi2Fe4O9 on C-Plane Al2O3 Substrate

Kallaev,

Sadykov,

Pavlenko

et al. 2023

Materials

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Nanocomposite films of BiFeO3-Bi2Fe4O9 were fabricated on a sapphire substrate Al2O3 using the method of gas discharge high-frequency cathodic sputtering of a ceramic target with a stoichiometric composition in an oxygen atmosphere. The results of the film analysis using X-ray structural analysis, Raman scattering, XPS, and atomic force microscopy are presented. The lattice parameters, surface topography, chemical composition of the films, concentration, and average sizes of the crystallites for each phase were determined. It was shown that the ratio of the BiFeO3 to Bi2Fe4O9 phases in the obtained film is approximately 1:2. The sizes of the crystallites range from 15 to 17 nm. The optical and magnetic properties of the nanocomposite layers were studied, and the band gap width and magnetization hysteresis characteristic of ferromagnetic behavior were observed. The band gap width was found to be 1.9 eV for the indirect and 2.6 eV for the direct interband transitions. The magnetic properties are characterized by a hysteresis loop resembling a “wasp-waist” shape, indicating the presence of magnetic anisotropy.

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“…Chen et al using first principles studies on BiCoO 3 demonstrated that the polarization and magnetic properties of BiCoO 3 can be tuned by introducing oxygen vacancies or by applying strain to the crystal. Defects play a highly critical role in governing the electronic and magnetic properties of a material [10,11]. Particularly in multiferroics such as BiFeO 3 , Bi vacancies have been found to be responsible for p-type conduction whereas it behaves as an insulator in presence of O vacancies [12].…”

Section: Introductionmentioning

confidence: 99%

Role of vacancies in tuning the electronic and magnetic properties of BiCoO₃

Kumari¹,

Jindal²,

Tomar³

et al. 2022

Phys. Scr.

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Effect of vacancies on structural, electronic and magnetic properties of BiCoO3 (BCO) have been studied using first principles calculations. Formation energy calculation suggest that VBi is stabilized in -2 charge state with no net change in magnetization and is likely to be formed spontaneously. VCo is stabilized in -1 state under O-poor conditions and exhibits various transition levels under O-rich conditions leads to a net magnetization. VO are formed readily under O-poor conditions with 0 and +2 charge state. Under O-rich conditions, VO(1) is stabilized in 0 and +1 states with a change in magnetization and leads to a net magnetization of 2µB (0.25 µB per formula unit), and VO(2) is stabilized as 0 and +2 charge states with no change in net magnetization. DOS shows that VBi leads to the formation of acceptor levels which may be responsible for p-type conduction, on the other hand, VO(2) leads to the formation of deep traps in BCO.

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Growth of highly oriented orthorhombic phase of Bi2Fe4O9 thin films by pulsed laser deposition

Cited by 4 publications

References 26 publications

Brief Theoretical Overview of Bi-Fe-O Based Thin Films

Brief Theoretical Overview of Bi-Fe-O Based Thin Films

Exploring RF Magnetron Sputtering Growth Composite Thin Film BiFeO3-Bi2Fe4O9 on C-Plane Al2O3 Substrate

Role of vacancies in tuning the electronic and magnetic properties of BiCoO₃

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Growth of highly oriented orthorhombic phase of Bi2Fe4O9 thin films by pulsed laser deposition

Cited by 4 publications

References 26 publications

Brief Theoretical Overview of Bi-Fe-O Based Thin Films

Brief Theoretical Overview of Bi-Fe-O Based Thin Films

Exploring RF Magnetron Sputtering Growth Composite Thin Film BiFeO3-Bi2Fe4O9 on C-Plane Al2O3 Substrate

Role of vacancies in tuning the electronic and magnetic properties of BiCoO3

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Role of vacancies in tuning the electronic and magnetic properties of BiCoO₃