Magnetic, magnetodielectric, and magnetoimpedance correlations in co-substituted (Co, Ho) KBiFe2O5 at room temperature

Chandrakanta, K.; Jena, Rasmita; Sahu, D.P.; Singh, Anar

doi:10.1016/j.jallcom.2022.168432

Cited by 8 publications

(5 citation statements)

References 41 publications

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“…The magneto-dielectric coupling

is negative, where

and

are the dielectric constant with and without magnetic field, respectively. This is in agreement with the experimental data of Khan et al [ 27 ] and Chandra et al [ 15 , 17 ].…”

Section: Numerical Results and Discussionsupporting

confidence: 93%

“…Let us emphasize that codoping, for example with Ru and Co, would show a stronger increase in M and P or decrease in

than the Ru- or Co-doped compounds. Recently, the codoping effects of different ions on the properties of KBFO were studied in [ 17 ]. These effects will be studied in a next paper.…”

Section: Discussionmentioning

confidence: 99%

“…The doping effects with different ions (La, Y, Co, Ho, Ru, and Al) on structural, magnetic, electrical, and optical properties of KBFO have also been investigated [ 13 , 14 , 15 , 16 , 17 , 18 ]. The doping ions can change the properties of the compound.…”

Section: Introductionmentioning

confidence: 99%

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Multiferroic Properties of Co, Ru, and La Ion Doped KBiFe2O5

Apostolov,

Apostolova,

Wesselinowa

2023

Materials

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The magnetic, electric, dielectric, and optical (band gap) properties of ion doped multiferroic KBiFe2O5 (KBFO) have been systematically investigated utilizing a microscopic model and the Green’s function theory. Doping with Co at the Fe site and Ru at the Bi site induces changes in magnetization, coercive field, and band gap energy. Specifically, an increase in magnetization is observed, while the coercive field and band gap energy decrease. This behavior is attributed to the distinct ionic radii of the doped and host ions, leading to alterations in the exchange interaction constants. The temperature dependence of the polarization P reveals a distinctive kink at the Neel temperature TN, which shifts to higher temperatures with an increase in the applied magnetic field h. Furthermore, doping with Ru and La leads to an increase in polarization. The temperature dependence of the dielectric constant exhibits two peaks at the Neel temperature TN and the Curie temperature TC. Notably, these peaks diminish with increasing frequency. Additionally, the dielectric constant demonstrates a decrease with the rise in the applied magnetic field h. This study sheds light on the intricate interplay between ion doping, structural modifications, and multifunctional properties in KBFO, offering valuable insights into the underlying mechanisms governing its behavior across various physical domains.

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“…The magneto-dielectric coupling

is negative, where

and

are the dielectric constant with and without magnetic field, respectively. This is in agreement with the experimental data of Khan et al [ 27 ] and Chandra et al [ 15 , 17 ].…”

Section: Numerical Results and Discussionsupporting

confidence: 93%

“…Let us emphasize that codoping, for example with Ru and Co, would show a stronger increase in M and P or decrease in

than the Ru- or Co-doped compounds. Recently, the codoping effects of different ions on the properties of KBFO were studied in [ 17 ]. These effects will be studied in a next paper.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Multiferroic Properties of Co, Ru, and La Ion Doped KBiFe2O5

Apostolov,

Apostolova,

Wesselinowa

2023

Materials

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“…10 The brownmillerite material KBiFe 2 O 5 (KBFO) has urged a special focus on photovoltaic, magnetoelectric, and electronic device applications. [11][12][13] Manganese (Mn) substitution is particularly appealing because it not only substantially reduces leakage current but also triggers a residual magnetization in bismuth ferrite (BFO). 14 The incorporation of manganese (Mn) at the iron (Fe) site in bismuth ferrite (BiFeO 3 ) has been investigated to achieve a mixed valence state of iron involving both Fe 3+ and Fe 2+ .…”

Section: Introductionmentioning

confidence: 99%

“…10 The brownmillerite material KBiFe 2 O 5 (KBFO) has urged a special focus on photovoltaic, magnetoelectric, and electronic device applications. 11–13…”

Section: Introductionmentioning

confidence: 99%

Investigation of the structural, surface topographical, fractal, capacitive, and electrical properties of a defect brownmillerite perovskite material KBiFeMnO₅ for electronic devices

Panda,

Hota,

Choudhary

2024

RSC Adv.

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Development of Lead‐Free Defect Brownmillerite Perovskite Ceramic LiBiFeMnO₅ Solid Solution for Electronic Devices

Panda,

Hota,

Choudhary

2024

Adv Eng Mater

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This article reports the fabrication (synthesis) and characterizations (structural, microstructural topographic surface, dielectric, transport, impedance, current‐voltage, and resistive properties) of a complex lead‐free defect perovskite material of composition LiBiFeMnO5. A preliminary structural investigation of the X‐ray diffraction (XRD) pattern using N‐TREOR09 methods shows monoclinic symmetry. The scanning electron microscopic spectrum examines the sample’s microstructural topographic surface, fractal study, and roughness (using the standard ISO25178). The analysis of Maxwell‐Wagner dielectric dispersion, relaxation, and transport mechanisms are investigated utilizing dielectric, impedance, and conductivity spectrum accumulated within the experimental frequency of (1 kHz – 1 MHz) at different temperatures (30–500 ˚C). A non‐overlapping small polaron tunnelling (NSPT) conduction mechanism and correlated barrier hopping (CBH) mechanism in the material have helped to understand its conduction phenomena. The Ohmic and space charge limited conduction (SCLC) mechanisms have been investigated by the slope of the logarithmic electric field (E) and current density (J). The thermistor constant (β) is determined to be 1982.87. The temperature coefficient of resistance (TCR) is found to be ‐0.00419, which may be suitable for negative temperature coefficient (NTC) thermistors, sensors, and other related devices.This article is protected by copyright. All rights reserved.

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Magnetic, magnetodielectric, and magnetoimpedance correlations in co-substituted (Co, Ho) KBiFe2O5 at room temperature

Cited by 8 publications

References 41 publications

Multiferroic Properties of Co, Ru, and La Ion Doped KBiFe2O5

Multiferroic Properties of Co, Ru, and La Ion Doped KBiFe2O5

Investigation of the structural, surface topographical, fractal, capacitive, and electrical properties of a defect brownmillerite perovskite material KBiFeMnO₅ for electronic devices

Development of Lead‐Free Defect Brownmillerite Perovskite Ceramic LiBiFeMnO₅ Solid Solution for Electronic Devices

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Magnetic, magnetodielectric, and magnetoimpedance correlations in co-substituted (Co, Ho) KBiFe2O5 at room temperature

Cited by 8 publications

References 41 publications

Multiferroic Properties of Co, Ru, and La Ion Doped KBiFe2O5

Multiferroic Properties of Co, Ru, and La Ion Doped KBiFe2O5

Investigation of the structural, surface topographical, fractal, capacitive, and electrical properties of a defect brownmillerite perovskite material KBiFeMnO5 for electronic devices

Development of Lead‐Free Defect Brownmillerite Perovskite Ceramic LiBiFeMnO5 Solid Solution for Electronic Devices

Contact Info

Product

Resources

About

Investigation of the structural, surface topographical, fractal, capacitive, and electrical properties of a defect brownmillerite perovskite material KBiFeMnO₅ for electronic devices

Development of Lead‐Free Defect Brownmillerite Perovskite Ceramic LiBiFeMnO₅ Solid Solution for Electronic Devices