| 학회 |
한국재료학회 |
| 학술대회 |
2019년 봄 (05/15 ~ 05/17, 평창 알펜시아 리조트) |
| 권호 |
25권 1호 |
| 발표분야 |
A. 전자/반도체 재료 분과 |
| 제목 |
A simple method to self-bias a center-clamped ME laminate composite |
| 초록 |
We introduce here a simple method to generate self-biased magnetoelectric (SME) response in a center-clamped ME laminate composite. It is based on shifting the magnetic hysteresis loop of the magnetostrictive layer of the laminate composite by applying an external magnetic field to the laminate other than the magnetic bias field (HDC). We have worked out mathematical formulation to calculate the optimum magnitude of the pre-applied magnetic field in order to obtain maximum value of SME coefficient (αH=0) at HDC = 0. This method is verified experimentally for Metglas/PZT/Metglas and Metglas/PZT/Ni laminate composites, with an optimum length of 6 cm, at resonant and off-resonant frequency. A high value of αH=0 = 58 V/cm Oe was obtained at HDC = 0. The magnitude of αH=0 could be tuned by changing the direction of the pre-applied magnetic field. This study was supported financially by the National Research Foundation of Korea (NRF) Grant funded by the Korean Government(Ministry of Education) [NRF-2016R1D1A1B03935024] and [NRF-2018R1A6A1A03025761], and Fundamental Research Program of the Korean Institute of Materials Science (KIMS). |
| 저자 |
Deka Bipul1, 이용우1, 조경훈1, 안철우2, 한병동2, 최종진2
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| 소속 |
1금오공과대, 2한국 기계(연) |
| 키워드 |
Magneto electric; Self-bias
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| E-Mail |
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