Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba 0.7Sr 1.3Zn 2(Fe 1-xAl x) 12O 22

Hun Chang, Hak Bong Lee, Young Sang Song, Jaiho Chung, S. A. Kim, I. H. Oh, M. Reehuis, J. Schefer

Research output: Contribution to journalArticle

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Abstract

We investigated the effect of Al doping in magnetic properties of the Y-type hexaferrite Ba 0.7Sr 1.3Zn 2(Fe 1-xAl x) 12O 22 (0≤x≤0.12), which exhibit field-induced magnetoelectric polarization. We find that Al doping increases the pitch of a spin helix and enhances c-axis magnetization, stabilizing longitudinal conical phases. These conical phases eventually collapse at x 0.10. These results suggest that competitions between easy-axis and easy-plane anisotropy fields play a key role in generating stable magnetoelectric polarization in Y-type hexaferrites.

Original languageEnglish
Article number064402
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number6
DOIs
Publication statusPublished - 2012 Feb 1

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Phase transitions
Doping (additives)
Polarization
polarization
helices
Magnetization
Magnetic properties
Anisotropy
magnetic properties
magnetization
anisotropy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba 0.7Sr 1.3Zn 2(Fe 1-xAl x) 12O 22 . / Chang, Hun; Lee, Hak Bong; Song, Young Sang; Chung, Jaiho; Kim, S. A.; Oh, I. H.; Reehuis, M.; Schefer, J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 6, 064402, 01.02.2012.

Research output: Contribution to journalArticle

Chang, Hun ; Lee, Hak Bong ; Song, Young Sang ; Chung, Jaiho ; Kim, S. A. ; Oh, I. H. ; Reehuis, M. ; Schefer, J. / Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba 0.7Sr 1.3Zn 2(Fe 1-xAl x) 12O 22 In: Physical Review B - Condensed Matter and Materials Physics. 2012 ; Vol. 85, No. 6.
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