Magnetic properties of nano-multiferroic materials

Koduri Ramam; Bhagavathula S. Diwakar; Kokkarachedu Varaprasad; Veluri Swaminadham; Venu Reddy

doi:10.1016/j.jmmm.2017.06.125

Magnetic properties of nano-multiferroic materials

Koduri Ramam^*, Bhagavathula S. Diwakar, Kokkarachedu Varaprasad, Veluri Swaminadham, Venu Reddy

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Latent magnetization in the multiferroics can be achieved via the structural distortion with respect to particle size and destroying the spiral spin structure, which plays the vital role in high-performance applications. In this investigation, multifunctional single phase Bi_1−xLa_xFe_1−yCo_yO₃ nanomaterials were synthesized by co-precipitation technique. The chemical composition, phase genesis, morphology and thermal characteristics of the Bi_1−xLa_xFe_1−yCo_yO₃ were studied by FTIR, XRD, SEM/EDS, TEM and TGA. XRD studies confirmed single phase distorted rhombohedral structure in Bi_1−xLa_xFe_1−yCo_yO₃. The novelty in magnetic behavior of the Bi_0.85La_0.15Fe_0.75Co_0.25O₃ multiferroic at room temperature showed both ferro and anti-ferromagnetic nature with higher order remanent magnetization among other nanocomposites in this study. This magnetic anomaly in Bi_0.85La_0.15Fe_0.75Co_0.25O₃ is due to doping and size effects on the crystal structure that leads to spin-orbit interactions. Besides, Bi_0.85La_0.15Fe_0.75Co_0.25O₃ integrated graphene oxide (GO) nanocomposite has shown the change in the magnetic hysteresis that indicates the effect of the semiconducting behavior of GO on the ordered magnetic moments in the multiferroic. This kind of magnetic anomaly could form advanced multiferroic devices.

Original language	English
Pages (from-to)	453-459
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	442
DOIs	https://doi.org/10.1016/j.jmmm.2017.06.125
State	Published - 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2017.06.125

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title = "Magnetic properties of nano-multiferroic materials",

abstract = "Latent magnetization in the multiferroics can be achieved via the structural distortion with respect to particle size and destroying the spiral spin structure, which plays the vital role in high-performance applications. In this investigation, multifunctional single phase Bi1−xLaxFe1−yCoyO3 nanomaterials were synthesized by co-precipitation technique. The chemical composition, phase genesis, morphology and thermal characteristics of the Bi1−xLaxFe1−yCoyO3 were studied by FTIR, XRD, SEM/EDS, TEM and TGA. XRD studies confirmed single phase distorted rhombohedral structure in Bi1−xLaxFe1−yCoyO3. The novelty in magnetic behavior of the Bi0.85La0.15Fe0.75Co0.25O3 multiferroic at room temperature showed both ferro and anti-ferromagnetic nature with higher order remanent magnetization among other nanocomposites in this study. This magnetic anomaly in Bi0.85La0.15Fe0.75Co0.25O3 is due to doping and size effects on the crystal structure that leads to spin-orbit interactions. Besides, Bi0.85La0.15Fe0.75Co0.25O3 integrated graphene oxide (GO) nanocomposite has shown the change in the magnetic hysteresis that indicates the effect of the semiconducting behavior of GO on the ordered magnetic moments in the multiferroic. This kind of magnetic anomaly could form advanced multiferroic devices.",

keywords = "Colossal magnetism, Graphene oxide, Magnetic anomaly, Multiferroics, Nanocomposites",

author = "Koduri Ramam and Diwakar, {Bhagavathula S.} and Kokkarachedu Varaprasad and Veluri Swaminadham and Venu Reddy",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.jmmm.2017.06.125",

language = "English",

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T1 - Magnetic properties of nano-multiferroic materials

AU - Ramam, Koduri

AU - Diwakar, Bhagavathula S.

AU - Varaprasad, Kokkarachedu

AU - Swaminadham, Veluri

AU - Reddy, Venu

PY - 2017/11/15

Y1 - 2017/11/15

N2 - Latent magnetization in the multiferroics can be achieved via the structural distortion with respect to particle size and destroying the spiral spin structure, which plays the vital role in high-performance applications. In this investigation, multifunctional single phase Bi1−xLaxFe1−yCoyO3 nanomaterials were synthesized by co-precipitation technique. The chemical composition, phase genesis, morphology and thermal characteristics of the Bi1−xLaxFe1−yCoyO3 were studied by FTIR, XRD, SEM/EDS, TEM and TGA. XRD studies confirmed single phase distorted rhombohedral structure in Bi1−xLaxFe1−yCoyO3. The novelty in magnetic behavior of the Bi0.85La0.15Fe0.75Co0.25O3 multiferroic at room temperature showed both ferro and anti-ferromagnetic nature with higher order remanent magnetization among other nanocomposites in this study. This magnetic anomaly in Bi0.85La0.15Fe0.75Co0.25O3 is due to doping and size effects on the crystal structure that leads to spin-orbit interactions. Besides, Bi0.85La0.15Fe0.75Co0.25O3 integrated graphene oxide (GO) nanocomposite has shown the change in the magnetic hysteresis that indicates the effect of the semiconducting behavior of GO on the ordered magnetic moments in the multiferroic. This kind of magnetic anomaly could form advanced multiferroic devices.

AB - Latent magnetization in the multiferroics can be achieved via the structural distortion with respect to particle size and destroying the spiral spin structure, which plays the vital role in high-performance applications. In this investigation, multifunctional single phase Bi1−xLaxFe1−yCoyO3 nanomaterials were synthesized by co-precipitation technique. The chemical composition, phase genesis, morphology and thermal characteristics of the Bi1−xLaxFe1−yCoyO3 were studied by FTIR, XRD, SEM/EDS, TEM and TGA. XRD studies confirmed single phase distorted rhombohedral structure in Bi1−xLaxFe1−yCoyO3. The novelty in magnetic behavior of the Bi0.85La0.15Fe0.75Co0.25O3 multiferroic at room temperature showed both ferro and anti-ferromagnetic nature with higher order remanent magnetization among other nanocomposites in this study. This magnetic anomaly in Bi0.85La0.15Fe0.75Co0.25O3 is due to doping and size effects on the crystal structure that leads to spin-orbit interactions. Besides, Bi0.85La0.15Fe0.75Co0.25O3 integrated graphene oxide (GO) nanocomposite has shown the change in the magnetic hysteresis that indicates the effect of the semiconducting behavior of GO on the ordered magnetic moments in the multiferroic. This kind of magnetic anomaly could form advanced multiferroic devices.

KW - Colossal magnetism

KW - Graphene oxide

KW - Magnetic anomaly

KW - Multiferroics

KW - Nanocomposites

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VL - 442

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EP - 459

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Magnetic properties of nano-multiferroic materials

Abstract

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