Role of composition and grain size in controlling the structure sensitive magnetic properties of Sm3+ substituted nanocrystalline Co-Zn ferrites

Anil B. Mugutkar; Shyam K. Gore; Umakant B. Tumberphale; Vijaykumar V. Jadhav; Rajaram S. Mane; Sunil M. Patange; Sagar E. Shirsath; Santosh S. Jadhav

doi:10.1016/j.jre.2019.09.013

Role of composition and grain size in controlling the structure sensitive magnetic properties of Sm³⁺ substituted nanocrystalline Co-Zn ferrites

Anil B. Mugutkar, Shyam K. Gore, Umakant B. Tumberphale, Vijaykumar V. Jadhav, Rajaram S. Mane, Sunil M. Patange, Sagar E. Shirsath, Santosh S. Jadhav^*

^*Corresponding author for this work

Materials Science and Engineering

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

37 Scopus citations

Abstract

The nanocrystalline samarium substituted Co-Zn ferrites with chemical formula Co_0.7Zn_0.3Sm_yFe_2–yO₄ (where y = 0, 0.01, 0.02, 0.03, 0.04) were synthesized by sol-gel autocombustion route. The analysis of X-ray diffractograms (XRD) reveals the formation of cubic spinel structure. The planes indexed from XRD analyses were confirmed in the selected area electron diffraction (SAED) image of the sample. Nanocrystalline nature of the particles in the ferrite samples was confirmed by TEM. The morphology was analyzed by scanning electron microscopy (SEM). Magnetic measurements show an increase in the magnetization for x ≤ 0.03. The decrease in magnetization due to spin canting is observed for x = 0.04. The coercivity depends on Sm³⁺ doping concentration, grain size and saturation magnetization. The complex permeability of the ferrites was analyzed as the function of frequency and Sm³⁺ composition (y). The real part of complex permeability varies linearly with the grain size.

Original language	English
Pages (from-to)	1069-1075
Number of pages	7
Journal	Journal of Rare Earths
Volume	38
Issue number	10
DOIs	https://doi.org/10.1016/j.jre.2019.09.013
State	Published - Oct 2020

Keywords

Coercivity
HRTEM
Magnetization
Nanocrystalline ferrites
Permeability
Rietveld refinement

Access to Document

10.1016/j.jre.2019.09.013

Cite this

@article{e228250021f8464f88f504e549cd057d,

title = "Role of composition and grain size in controlling the structure sensitive magnetic properties of Sm3+ substituted nanocrystalline Co-Zn ferrites",

abstract = "The nanocrystalline samarium substituted Co-Zn ferrites with chemical formula Co0.7Zn0.3SmyFe2–yO4 (where y = 0, 0.01, 0.02, 0.03, 0.04) were synthesized by sol-gel autocombustion route. The analysis of X-ray diffractograms (XRD) reveals the formation of cubic spinel structure. The planes indexed from XRD analyses were confirmed in the selected area electron diffraction (SAED) image of the sample. Nanocrystalline nature of the particles in the ferrite samples was confirmed by TEM. The morphology was analyzed by scanning electron microscopy (SEM). Magnetic measurements show an increase in the magnetization for x ≤ 0.03. The decrease in magnetization due to spin canting is observed for x = 0.04. The coercivity depends on Sm3+ doping concentration, grain size and saturation magnetization. The complex permeability of the ferrites was analyzed as the function of frequency and Sm3+ composition (y). The real part of complex permeability varies linearly with the grain size.",

keywords = "Coercivity, HRTEM, Magnetization, Nanocrystalline ferrites, Permeability, Rietveld refinement",

author = "Mugutkar, {Anil B.} and Gore, {Shyam K.} and Tumberphale, {Umakant B.} and Jadhav, {Vijaykumar V.} and Mane, {Rajaram S.} and Patange, {Sunil M.} and Shirsath, {Sagar E.} and Jadhav, {Santosh S.}",

note = "Publisher Copyright: {\textcopyright} 2020 Chinese Society of Rare Earths",

year = "2020",

month = oct,

doi = "10.1016/j.jre.2019.09.013",

language = "英语",

volume = "38",

pages = "1069--1075",

journal = "Journal of Rare Earths",

issn = "1002-0721",

publisher = "Chinese Rare Earth Society",

number = "10",

}

TY - JOUR

T1 - Role of composition and grain size in controlling the structure sensitive magnetic properties of Sm3+ substituted nanocrystalline Co-Zn ferrites

AU - Mugutkar, Anil B.

AU - Gore, Shyam K.

AU - Tumberphale, Umakant B.

AU - Jadhav, Vijaykumar V.

AU - Mane, Rajaram S.

AU - Patange, Sunil M.

AU - Shirsath, Sagar E.

AU - Jadhav, Santosh S.

PY - 2020/10

Y1 - 2020/10

N2 - The nanocrystalline samarium substituted Co-Zn ferrites with chemical formula Co0.7Zn0.3SmyFe2–yO4 (where y = 0, 0.01, 0.02, 0.03, 0.04) were synthesized by sol-gel autocombustion route. The analysis of X-ray diffractograms (XRD) reveals the formation of cubic spinel structure. The planes indexed from XRD analyses were confirmed in the selected area electron diffraction (SAED) image of the sample. Nanocrystalline nature of the particles in the ferrite samples was confirmed by TEM. The morphology was analyzed by scanning electron microscopy (SEM). Magnetic measurements show an increase in the magnetization for x ≤ 0.03. The decrease in magnetization due to spin canting is observed for x = 0.04. The coercivity depends on Sm3+ doping concentration, grain size and saturation magnetization. The complex permeability of the ferrites was analyzed as the function of frequency and Sm3+ composition (y). The real part of complex permeability varies linearly with the grain size.

AB - The nanocrystalline samarium substituted Co-Zn ferrites with chemical formula Co0.7Zn0.3SmyFe2–yO4 (where y = 0, 0.01, 0.02, 0.03, 0.04) were synthesized by sol-gel autocombustion route. The analysis of X-ray diffractograms (XRD) reveals the formation of cubic spinel structure. The planes indexed from XRD analyses were confirmed in the selected area electron diffraction (SAED) image of the sample. Nanocrystalline nature of the particles in the ferrite samples was confirmed by TEM. The morphology was analyzed by scanning electron microscopy (SEM). Magnetic measurements show an increase in the magnetization for x ≤ 0.03. The decrease in magnetization due to spin canting is observed for x = 0.04. The coercivity depends on Sm3+ doping concentration, grain size and saturation magnetization. The complex permeability of the ferrites was analyzed as the function of frequency and Sm3+ composition (y). The real part of complex permeability varies linearly with the grain size.

KW - Coercivity

KW - HRTEM

KW - Magnetization

KW - Nanocrystalline ferrites

KW - Permeability

KW - Rietveld refinement

UR - http://www.scopus.com/inward/record.url?scp=85081946952&partnerID=8YFLogxK

U2 - 10.1016/j.jre.2019.09.013

DO - 10.1016/j.jre.2019.09.013

M3 - 文章

AN - SCOPUS:85081946952

SN - 1002-0721

VL - 38

SP - 1069

EP - 1075

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 10

ER -

Role of composition and grain size in controlling the structure sensitive magnetic properties of Sm³⁺ substituted nanocrystalline Co-Zn ferrites

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this