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The coercivity mechanism of Sm2Co17-type magnet has been studied for a long time, it is generally acceptaed that domain wall pinning by the SmCo5 cell boundary phase is the origin of large coercivity of this kind of magnet. Several works pointed out that Cu distribution around the cell boundary phase is the reason for domain wall pinning [1][2]. However, there still exists argument in whether the...
A magnetoelectric hysteresis loop measurement system based on dynamic method was built under a demodulation concept with a lock-in amplifier as the high speed demodulator. A measuring speed as fast as 300 ms/point was achieved, and a complete and fluent magnetoelectric hysteresis loop could be obtained within minutes. Results show that the static magnetic phenomenon affects magnetoelectric effect...
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