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Electric Field Control of Nonvolatile Four-State Magnetization at Room Temperature
- Chun, Sae Hwan;
- Chai, Yi Sheng;
- Jeon, Byung-Gu;
- Kim, Hyung Joon;
- Oh, Yoon Seok;
- ... Chung, Jae-Ho;
- 외 8명
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170초록
We find the realization of large converse magnetoelectric (ME) effects at room temperature in a magnetoelectric hexaferrite Ba0.52Sr2.48Co2Fe24O41 single crystal, in which rapid change of electric polarization in low magnetic fields (about 5 mT) is coined to a large ME susceptibility of 3200 ps/m. The modulation of magnetization then reaches up to 0.62 mu(B)/f.u. in an electric field of 1.14 MV/m. We find further that four ME states induced by different ME poling exhibit unique, nonvolatile magnetization versus electric field curves, which can be approximately described by an effective free energy with a distinct set of ME coefficients.
키워드
MULTIFERROICS; POLARIZATION
- 제목
- Electric Field Control of Nonvolatile Four-State Magnetization at Room Temperature
- 저자
- Chun, Sae Hwan; Chai, Yi Sheng; Jeon, Byung-Gu; Kim, Hyung Joon; Oh, Yoon Seok; Kim, Ingyu; Kim, Hanbit; Jeon, Byeong Jo; Haam, So Young; Park, Ju-Young; Lee, Suk Ho; Chung, Jae-Ho; Park, Jae-Hoon; Kim, Kee Hoon
- 발행일
- 2012-04-24
- 유형
- Article
- 권
- 108
- 호
- 17