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, Jae Ho Chung, S. A. Kim, I. H. Oh, M. Reehuis, J. Schefer

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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