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

doi:10.1103/PhysRevB.85.064402

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

Department of Physics

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

39 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 language	English
Article number	064402
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.85.064402
Publication status	Published - 2012 Feb 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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

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.",

author = "Hun Chang and Lee, {Hak Bong} and Song, {Young Sang} and Chung, {Jae Ho} and Kim, {S. A.} and Oh, {I. H.} and M. Reehuis and J. Schefer",

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T1 - Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba 0.7Sr 1.3Zn 2(Fe 1-xAl x) 12O 22

AU - Chang, Hun

AU - Lee, Hak Bong

AU - Song, Young Sang

AU - Chung, Jae Ho

AU - Kim, S. A.

AU - Oh, I. H.

AU - Reehuis, M.

AU - Schefer, J.

PY - 2012/2/1

Y1 - 2012/2/1

N2 - 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.

AB - 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.

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JO - Physical Review B - Condensed Matter and Materials Physics

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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

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