Room temperature multiferroicity of hexagonal LuFeO3 and its enhancement by co-doping in Lu0.9Co0.1Fe0.9Ti0.1O3 nanoparticle system

Sadhukhan, Sukhendu; Mitra, A.; Mahapatra, A.S.; Chakrabarti, P.K.

doi:10.1016/j.jallcom.2023.170351

Cited by 12 publications

(5 citation statements)

References 45 publications

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“…This off-center shift of the positive core with respect to the negatively charged O 2− results in the formation of a dipole, which enhances the ferroelectric property. 22 Also, doping of Ba at Na and Bi sites results in the antiphase tilting of TiO 6 (shown in Figure 3b), which results in an enhancement in the ferroelectric property discussed latter. These factors add up to the enhancement of microstrain in the crystal structure, which might enhance the ferroelectric domains, increasing spontaneous polarization.…”

Section: Resultsmentioning

confidence: 84%

“…Clearly, we can observe that the distance between O 2– and the Ba/Na/Bi sites along a particular direction is not the same but 2.95 and 2.61 Å. This off-center shift of the positive core with respect to the negatively charged O 2– results in the formation of a dipole, which enhances the ferroelectric property . Also, doping of Ba at Na and Bi sites results in the antiphase tilting of TiO 6 (shown in Figure b), which results in an enhancement in the ferroelectric property discussed latter.…”

Section: Results and Discussionmentioning

confidence: 91%

“…The obtained values of the lattice parameters and structural details are listed in Table 1. The average particle size and strain were calculated from the Willamson−Hall plot 22 as follows:…”

Section: Resultsmentioning

confidence: 99%

“…The obtained values of the lattice parameters and structural details are listed in Table . The average particle size and strain were calculated from the Willamson–Hall plot as follows: β h k l .25em cos .25em θ = k λ L + 4 ε .25em sin nobreak0em.25em⁡ θ Here, β hkl = full width at half-maximum, ε = microstrain, λ = wavelength of X-ray, and L = particle size. Parts e and f of Figure represent plots of β hkl cos θ vs 4 sin θ.…”

Section: Results and Discussionmentioning

confidence: 99%

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Preparation and Investigations of the Magnetoelectric Properties of (Ni_0.5Zn_0.5Fe₂O₄)_x [(Na_0.5Bi_0.5)_0.7Ba_0.3TiO₃]_1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Das,

Banerjee,

Bhakta

et al. 2024

ACS Appl. Nano Mater.

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A multiferroic nanocomposite was derived by considering Ni 0.5 Zn 0.5 Fe 2 O 4 (NZFO) and Ba-doped Na 0.5 Bi 0.5 TiO 3 (NBBTO) as the constituent components. Nanoparticles of (Na 0.5 Bi 0.5 ) 0.7 Ba 0.3 TiO 3 synthesized by the sol−gel technique were successfully incorporated into NZFO during its preparation. For this experiment, two distinct stoichiometric ratios were taken:). The X-ray diffractograms were subjected to Rietveld refinement, confirming the desired phase formation without any impurity. Images captured by field-emission scanning electron microscopy showed that particles are uniformly scattered with distinct spherical morphology. The lack of impurity elements was verified by energy-dispersive X-ray spectroscopy (EDAX), and EDAX mapping showed that the constituent elements were distributed uniformly. The magnetic moment variation from 300 to 50 K was analyzed to identify magnetic phases in the composites. The presence of nearly saturated loops was revealed in both composites by the zero-field-cooled and field-cooled magnetization data as a function of the temperature and magnetization versus field loops, as recorded by vibrating sample magnetometry (VSM). The maximum magnetization was observed to be 16.76 emu/g for NZFO-NBBTO-1 and 22.45 emu/g for NZFO-NBBTO-2 at 300 K. At 300 K, both composites exhibited good dielectric properties, with a dielectric strength of ∼320 and a low loss of ∼0.5. Direct observation of the ferroelectric loop indicated that NZFO-NBBTO-1 exhibited better ferroelectricity (P max ∼0.018 μc/cm 2 ) compared to NZFO-NBBTO-2 (P max ∼0.01 μc/cm 2 ). The magnetocapacitance coefficient was also higher in NZFO-NBBTO-1 (∼4%) than in NZFO-NBBTO-2 (∼3%). In general, the findings indicate that NZFO-NBBTO-1 shows great promise as a potential candidate for a magnetoelectric multiferroic material that could be used for the development of magnetic field sensors, spintronic devices, sensors, microelectronic devices, actuators, and electronic memory devices.

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Section: Resultsmentioning

confidence: 84%

Section: Results and Discussionmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation and Investigations of the Magnetoelectric Properties of (Ni_0.5Zn_0.5Fe₂O₄)_x [(Na_0.5Bi_0.5)_0.7Ba_0.3TiO₃]_1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Das,

Banerjee,

Bhakta

et al. 2024

ACS Appl. Nano Mater.

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“…The signature of multiferroicity in CFO has been studied by many researchers all over the world. Sadhukhan et al found the strong enhancement in multiferroic nature of hexagonal LuFeO 3 by co-doping of titanium and cobalt ions [9]. Akhtar et al studied the electrical and magnetic properties of copper doped cobalt cerium nanocrystalline ferrites [10].…”

Section: Introductionmentioning

confidence: 99%

Advancements in multiferroic, dielectric, and impedance properties of copper–yttrium co-doped cobalt ferrite for hydroelectric cell applications

Jain,

Shankar,

Thakur

2024

J. Phys.: Condens. Matter

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This paper explores yttrium and copper co-doped cobalt ferrite [Co1-xCuxFe1.85Y0.15O4] synthesized via the sol-gel auto combustion route (0.0 ≤ x ≤ 0.08). Investigating the impact of co-dopants on CoFe2O4, the study reveals altered cation distribution affecting structure, multiferroic, and electrical properties. XRD studies show nanocrystalline co-doped cobalt ferrites with lattice expansion and smaller grains due to Cu-Y co-doping. FTIR confirms inverse spinel family classification with tetrahedral lattice shrinkage. FESEM indicates a grain size of approximately 0.12 μm. Ferroelectric analysis reveals a peak saturation polarization of 23.42 μC/cm2 for 8% copper doping, attributed to increased Fe3+ ions at tetrahedral sites. Saturation magnetization peaks at 54.4706 emu/g for 2% Cu2+ ion substitution [Co0.98Cu0.02Fe1.85Y0.15O4] and decreases to 37.09 emu/g for 4% Cu substitution due to irregular iron atom distribution at tetrahedral sites. Dielectric studies uncover Maxwell-Wagner Polarization and high resistance in grain and grain boundaries using Impedance Spectroscopy. Fabricated hydroelectric cells exhibit improved ionic diffusion, suggesting potential applications.

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A multi-layer design of hexaferrite decorated graphene derivatives incorporated PVDF nanocomposite films; understanding the role of GO/rGO for outstanding electromagnetic wave absorption at microwave frequencies

Saha,

Chakraborty,

Saha

et al. 2024

Carbon

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Room temperature multiferroicity of hexagonal LuFeO3 and its enhancement by co-doping in Lu0.9Co0.1Fe0.9Ti0.1O3 nanoparticle system

Cited by 12 publications

References 45 publications

Preparation and Investigations of the Magnetoelectric Properties of (Ni_0.5Zn_0.5Fe₂O₄)_x [(Na_0.5Bi_0.5)_0.7Ba_0.3TiO₃]_1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Preparation and Investigations of the Magnetoelectric Properties of (Ni_0.5Zn_0.5Fe₂O₄)_x [(Na_0.5Bi_0.5)_0.7Ba_0.3TiO₃]_1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Advancements in multiferroic, dielectric, and impedance properties of copper–yttrium co-doped cobalt ferrite for hydroelectric cell applications

A multi-layer design of hexaferrite decorated graphene derivatives incorporated PVDF nanocomposite films; understanding the role of GO/rGO for outstanding electromagnetic wave absorption at microwave frequencies

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Room temperature multiferroicity of hexagonal LuFeO3 and its enhancement by co-doping in Lu0.9Co0.1Fe0.9Ti0.1O3 nanoparticle system

Cited by 12 publications

References 45 publications

Preparation and Investigations of the Magnetoelectric Properties of (Ni0.5Zn0.5Fe2O4)x [(Na0.5Bi0.5)0.7Ba0.3TiO3]1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Preparation and Investigations of the Magnetoelectric Properties of (Ni0.5Zn0.5Fe2O4)x [(Na0.5Bi0.5)0.7Ba0.3TiO3]1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Advancements in multiferroic, dielectric, and impedance properties of copper–yttrium co-doped cobalt ferrite for hydroelectric cell applications

A multi-layer design of hexaferrite decorated graphene derivatives incorporated PVDF nanocomposite films; understanding the role of GO/rGO for outstanding electromagnetic wave absorption at microwave frequencies

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Product

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About

Preparation and Investigations of the Magnetoelectric Properties of (Ni_0.5Zn_0.5Fe₂O₄)_x [(Na_0.5Bi_0.5)_0.7Ba_0.3TiO₃]_1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications

Preparation and Investigations of the Magnetoelectric Properties of (Ni_0.5Zn_0.5Fe₂O₄)_x [(Na_0.5Bi_0.5)_0.7Ba_0.3TiO₃]_1–x (x = 0.3, 0.5) Nanocomposite Ceramics for Magnetic Field Sensor Applications