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Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba0.7Sr1.3Zn2(Fe1-xAlx)(12)O-22
- Chang, Hun;
- Lee, Hak Bong;
- Song, Young-Sang;
- Chung, Jae-Ho;
- Kim, S. A.;
- 외 3명
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48초록
We investigated the effect of Al doping in magnetic properties of the Y-type hexaferrite Ba0.7Sr1.3Zn2(Fe1-xAlx)(12)O-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.
키워드
NEUTRON-DIFFRACTION; ROOM-TEMPERATURE; FIELD CONTROL; POLARIZATION; (BA1-XSRX)2ZN2FE12O22; FERROELECTRICITY; HELIMAGNET; FERRITE; SINQ
- 제목
- Al doping effect on magnetic phase transitions of magnetoelectric hexaferrite Ba0.7Sr1.3Zn2(Fe1-xAlx)(12)O-22
- 저자
- Chang, Hun; Lee, Hak Bong; Song, Young-Sang; Chung, Jae-Ho; Kim, S. A.; Oh, I. H.; Reehuis, M.; Schefer, J.
- 발행일
- 2012-02-01
- 유형
- Article
- 권
- 85
- 호
- 6