Thin film processing of multiferroic BiFeO3: From sophistication to simplicity. A review

Gumiel, Carlos; Calatayud, David G.

doi:10.1016/j.bsecv.2021.08.002

Cited by 12 publications

(6 citation statements)

References 134 publications

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“…All films exhibit relatively high values of the loss tangent, possibly due to the presence of leakage currents in the films (active current). 1 As the frequency of the electric field increases further, up to 1 kHz, the values of the loss tangent stabilize and show little change in the remaining frequency range up to 1 MHz. Figure 7c presents the dependence of the dielectric permittivity of PFOCr10 films deposited at different synthesis temperatures on the external electric field frequency.…”

Section: Ferroelectric Properties-figuresmentioning

confidence: 91%

“…Multiferroic materials simultaneously exhibit different primary ferroic properties, including ferroelectricity, ferromagnetism, and ferroelasticity, rendering them multifunctional materials. [1][2][3][4] Of particular interest is the coupling between ferroelectric and magnetic properties, which has received considerable attention. The ability to manipulate both ferroelectric and magnetic properties in a single phase presents numerous opportunities for the development of nonvolatile memory devices, 5 transducers, 6 magnetic field sensors, 6 and other applications.…”

mentioning

confidence: 99%

“…6 The two mechanisms involved in this process are ferroelectricity, which arises from transition ions with empty d shells, and magnetism, which requires transition metal ions with partially filled d shells. 1,2,9 Many multiferroic materials encounter limitations, such as a low Néel temperature, which restricts their suitability for room temperature applications. 10,11 Consequently, there exists a demand to explore novel multiferroics or enhance the existing ones.…”

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confidence: 99%

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Synthesis and Characterization of Cr-Doped Pb₂Fe₂O₅ Thin Films by Reactive Magnetron Sputtering

Beklešovas,

Stankus,

Abakevičienė

et al. 2023

ECS J. Solid State Sci. Technol.

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Multiferroic materials, which exhibit simultaneous ferroelectricity, ferromagnetism, and ferro-elasticity, have attracted significant attention due to their multifunctional properties. Coupling between ferroelectric and magnetic properties has led to the development of non-volatile memory devices, transducers, magnetic field sensors, and other applications. Pb2Fe2O5 (PFO) is a promising multiferroic material due to it simultaneously exhibiting ferroelectricity and ferromagnetism at room temperature. Doping with aliovalent ions, such as Cr3+, has been proposed as an effective method for enhancing the ferroelectric and magnetic properties, consequently leading to the enhancement of multiferroic properties. The investigation shows that the lead ferrite phase (220) was present in all samples, but its abundance reduced with increasing synthesis temperature due to lead desorption. Dielectric measurements revealed that PFO films with highest Cr concentration had the highest polarization (Pr) of 72.2 μC cm−2. The study also found that the magnetization of PFO films was up to 9.5·10−7 μAm2 at an ambient temperature of 5 K, and the magnetic ordering temperature was 363 K, corresponding to the magnetic ordering temperature of chromium oxides. The morphology of Cr doped PFO films changed with increasing chromium content, resulting in a reduction in grain size and an increase in the film density.

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Section: Ferroelectric Properties-figuresmentioning

confidence: 91%

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confidence: 99%

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confidence: 99%

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Synthesis and Characterization of Cr-Doped Pb₂Fe₂O₅ Thin Films by Reactive Magnetron Sputtering

Beklešovas,

Stankus,

Abakevičienė

et al. 2023

ECS J. Solid State Sci. Technol.

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“…Much work has also been performed on thin films and heterostructures of BiFeO 3 [45][46][47][48], since this is likely to be the main area of applications of multiferroics. For example, there is much recent work on controlling magnetism in epitaxial layers within heterostructures [49][50][51], the behaviour of ferroelectric domains [52], and in developing magneto-electrical control of devices [53,54].…”

Section: Bifeomentioning

confidence: 99%

Neutron powder-diffraction study of phase transitions in strontium-doped bismuth ferrite: 1. Variation with chemical composition

Zhengzheng

Tan

Huang

et al. 2022

J. Phys.: Condens. Matter

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We report results from a study of the crystal structure of strontium-doped BiFeO3 using neutron powder diﬀraction and the Rietveld method. Measurements were obtained over a wide range of temperatures from 300–800 K for compositions between 10–16% replacement of bismuth by strontium. The results show a clear variation of the two main structural deformations – symmetry-breaking rotations of the FeO6 octahedra and polar ionic displacements that give ferroelectricity – with chemical composition, but relatively little variation with temperature. On the other hand, the antiferromagnetic order shows a variation with temperature and a second order phase transition consistent with the classical Heisenberg model. There is, however, very little variation in the behaviour of the antiferromagnetism with chemical composition, and hence with the degree of the structural symmetry-breaking distortions. We therefore conclude that there is no signiﬁcant coupling between antiferromagnetism and ferroelectricity in Sr-doped BiFeO3 and, by extension, in pure BiFeO3.

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“…While BiFeO 3 has gained considerable attention, its intrinsic shortcomings, predominantly its antiferromagnetic character with modest magnetization, are undeniable. [13][14][15] Another versatile single-phase multiferroic material group is the layered supercell (LSC) oxides, including Bi 3 Fe 2 Mn 2 O x (BFMO322), Bi 2 NiMnO 6 (BNMO), Bi 2 AlMnO 6 (BAMO), and others. [11,16,17] For example, BNMO has been processed into bulk, nanoparticles, and thin-film forms, and has been demonstrated as a promising candidate in the multiferroic community.…”

Section: Introductionmentioning

confidence: 99%

Van der Waals Epitaxy of Bismuth‐Based Multiferroic Layered Supercell Oxide Thin Films Integrated on Flexible Mica Substrate

Shen,

Tsai,

Zhang

et al. 2023

Small Science

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Bi2NiMnO6 (BNMO) epitaxial thin films with a layered supercell (LSC) structure have emerged as a promising single‐phase multiferroic material recently. Because of the required strain state for the formation of the LSC structures, most of the previous BNMO films are demonstrated on rigid oxide substrates such as SrTiO3 and LaAlO3. Here, the potential of BNMO films grown on muscovite mica substrates via van der Waals epitaxy, spotlighting their suitability for cutting‐edge flexible device applications is delved. Comprehensive scanning transmission electron microscopy/energy‐dispersive X‐ray analyses reveal a layered structure in the BNMO film and a pristine interface with the mica substrate, indicating high‐quality deposition and minimal interfacial defects. Capitalizing on its unique property of easily cleavable layers due to weak van der Waals forces in mica substrates, flexible BNMO/mica samples are fixed. A standout feature of the BNMO film grown on mica substrate is its consistent multiferroic properties across varied mechanical conditions. A novel technique is introduced for thinning the mica substrate and subsequent transfer of the sample, with post‐transfer analyses validating the preserved structural and magnetic attributes of the film. Overall, this study illuminates the resilient multiferroic properties of BNMO films on mica, offering promising avenues for their integration for next‐generation flexible electronics.

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Thin film processing of multiferroic BiFeO3: From sophistication to simplicity. A review

Cited by 12 publications

References 134 publications

Synthesis and Characterization of Cr-Doped Pb₂Fe₂O₅ Thin Films by Reactive Magnetron Sputtering

Synthesis and Characterization of Cr-Doped Pb₂Fe₂O₅ Thin Films by Reactive Magnetron Sputtering

Neutron powder-diffraction study of phase transitions in strontium-doped bismuth ferrite: 1. Variation with chemical composition

Van der Waals Epitaxy of Bismuth‐Based Multiferroic Layered Supercell Oxide Thin Films Integrated on Flexible Mica Substrate

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Thin film processing of multiferroic BiFeO3: From sophistication to simplicity. A review

Cited by 12 publications

References 134 publications

Synthesis and Characterization of Cr-Doped Pb2Fe2O5 Thin Films by Reactive Magnetron Sputtering

Synthesis and Characterization of Cr-Doped Pb2Fe2O5 Thin Films by Reactive Magnetron Sputtering

Neutron powder-diffraction study of phase transitions in strontium-doped bismuth ferrite: 1. Variation with chemical composition

Van der Waals Epitaxy of Bismuth‐Based Multiferroic Layered Supercell Oxide Thin Films Integrated on Flexible Mica Substrate

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Synthesis and Characterization of Cr-Doped Pb₂Fe₂O₅ Thin Films by Reactive Magnetron Sputtering

Synthesis and Characterization of Cr-Doped Pb₂Fe₂O₅ Thin Films by Reactive Magnetron Sputtering