Magnetic properties of La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method

Takeyuki Kikuchi, Tatsuya Nakamura, Tohru Yamasaki, Makoto Nakanishi, Tatsuo Fujii, Jun Takada, Yasunori Ikeda

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Magnetic properties of La-Co substituted M-type strontium hexaferrites were studied. The samples were prepared by polymerizable complex method. Crystal structure of samples has been investigated by powder X-ray diffraction (XRD). Single-phase M-type strontium hexaferrites with chemical composition of Sr1.05-xLaxFe12-xCoxO19 (x=0-0.4) were formed by heating at 1173 K for 24 h in air. Magnetic properties were discussed by measurements of M-H curves with vibrating sample magnetometer (VSM). La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method showed typical magnetic hysteresis of hard ferrite. The coercive force increased significantly by La-Co substitution with polymerizable complex method. Maximum coercive force achieved in this study is 8.0 kOe (640 kA/m). Scanning electron microscopy revealed that the prepared ferrite particles have plate-like shape of diameter range between 20 and 500 nm.

Original languageEnglish
Pages (from-to)2381-2385
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume322
Issue number16
DOIs
Publication statusPublished - Aug 2010

Fingerprint

Strontium
strontium
Magnetic properties
magnetic properties
Coercive force
Ferrite
ferrites
Magnetic hysteresis
Magnetometers
X ray powder diffraction
magnetometers
chemical composition
Substitution reactions
Crystal structure
hysteresis
substitutes
Heating
Scanning electron microscopy
scanning electron microscopy
crystal structure

Keywords

  • La-Co substitution
  • M-type strontium hexaferrite
  • Polymerizable complex method

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Magnetic properties of La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method. / Kikuchi, Takeyuki; Nakamura, Tatsuya; Yamasaki, Tohru; Nakanishi, Makoto; Fujii, Tatsuo; Takada, Jun; Ikeda, Yasunori.

In: Journal of Magnetism and Magnetic Materials, Vol. 322, No. 16, 08.2010, p. 2381-2385.

Research output: Contribution to journalArticle

Kikuchi, Takeyuki ; Nakamura, Tatsuya ; Yamasaki, Tohru ; Nakanishi, Makoto ; Fujii, Tatsuo ; Takada, Jun ; Ikeda, Yasunori. / Magnetic properties of La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method. In: Journal of Magnetism and Magnetic Materials. 2010 ; Vol. 322, No. 16. pp. 2381-2385.
@article{83a9d3487a594572b519f10518e9ce66,
title = "Magnetic properties of La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method",
abstract = "Magnetic properties of La-Co substituted M-type strontium hexaferrites were studied. The samples were prepared by polymerizable complex method. Crystal structure of samples has been investigated by powder X-ray diffraction (XRD). Single-phase M-type strontium hexaferrites with chemical composition of Sr1.05-xLaxFe12-xCoxO19 (x=0-0.4) were formed by heating at 1173 K for 24 h in air. Magnetic properties were discussed by measurements of M-H curves with vibrating sample magnetometer (VSM). La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method showed typical magnetic hysteresis of hard ferrite. The coercive force increased significantly by La-Co substitution with polymerizable complex method. Maximum coercive force achieved in this study is 8.0 kOe (640 kA/m). Scanning electron microscopy revealed that the prepared ferrite particles have plate-like shape of diameter range between 20 and 500 nm.",
keywords = "La-Co substitution, M-type strontium hexaferrite, Polymerizable complex method",
author = "Takeyuki Kikuchi and Tatsuya Nakamura and Tohru Yamasaki and Makoto Nakanishi and Tatsuo Fujii and Jun Takada and Yasunori Ikeda",
year = "2010",
month = "8",
doi = "10.1016/j.jmmm.2010.02.041",
language = "English",
volume = "322",
pages = "2381--2385",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "16",

}

TY - JOUR

T1 - Magnetic properties of La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method

AU - Kikuchi, Takeyuki

AU - Nakamura, Tatsuya

AU - Yamasaki, Tohru

AU - Nakanishi, Makoto

AU - Fujii, Tatsuo

AU - Takada, Jun

AU - Ikeda, Yasunori

PY - 2010/8

Y1 - 2010/8

N2 - Magnetic properties of La-Co substituted M-type strontium hexaferrites were studied. The samples were prepared by polymerizable complex method. Crystal structure of samples has been investigated by powder X-ray diffraction (XRD). Single-phase M-type strontium hexaferrites with chemical composition of Sr1.05-xLaxFe12-xCoxO19 (x=0-0.4) were formed by heating at 1173 K for 24 h in air. Magnetic properties were discussed by measurements of M-H curves with vibrating sample magnetometer (VSM). La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method showed typical magnetic hysteresis of hard ferrite. The coercive force increased significantly by La-Co substitution with polymerizable complex method. Maximum coercive force achieved in this study is 8.0 kOe (640 kA/m). Scanning electron microscopy revealed that the prepared ferrite particles have plate-like shape of diameter range between 20 and 500 nm.

AB - Magnetic properties of La-Co substituted M-type strontium hexaferrites were studied. The samples were prepared by polymerizable complex method. Crystal structure of samples has been investigated by powder X-ray diffraction (XRD). Single-phase M-type strontium hexaferrites with chemical composition of Sr1.05-xLaxFe12-xCoxO19 (x=0-0.4) were formed by heating at 1173 K for 24 h in air. Magnetic properties were discussed by measurements of M-H curves with vibrating sample magnetometer (VSM). La-Co substituted M-type strontium hexaferrites prepared by polymerizable complex method showed typical magnetic hysteresis of hard ferrite. The coercive force increased significantly by La-Co substitution with polymerizable complex method. Maximum coercive force achieved in this study is 8.0 kOe (640 kA/m). Scanning electron microscopy revealed that the prepared ferrite particles have plate-like shape of diameter range between 20 and 500 nm.

KW - La-Co substitution

KW - M-type strontium hexaferrite

KW - Polymerizable complex method

UR - http://www.scopus.com/inward/record.url?scp=77953130415&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77953130415&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2010.02.041

DO - 10.1016/j.jmmm.2010.02.041

M3 - Article

AN - SCOPUS:77953130415

VL - 322

SP - 2381

EP - 2385

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 16

ER -