论文标题
域切换和交换偏置控制通过电场中的多用量锥形磁铁MN $ _2 $ geo $ _4 $
Domain switching and exchange bias control by electric field in multiferroic conical magnet Mn$_2$GeO$_4$
论文作者
论文摘要
电场对磁力的影响在多用量锥形磁铁MN $ _2 $ geo $ _4 $中检查，该$ _4 $ $ _4 $，显示了铁电磁和铁电订单参数之间的牢固耦合。在各种场冷却条件下，在5.5 K以下的多效相中对电极化的系统评估表明，0.1 t的小磁场显着降低了达到饱和所需的所需的电场。通过在磁场磁场的磁力化M和极化p的磁场上应用电场，观察到电气可控的交换偏置，这一现象在单相多表情中极为罕见。此外，在特定的磁场条件下，可以实现P和M域的非可逆性转换。
The electric field effect on magnetism was examined in the multiferroic conical magnet Mn$_2$GeO$_4$, which shows a strong coupling between ferromagnetic and ferroelectric order parameters. The systematic evaluation of the electric polarization in the multiferroic phase below 5.5 K under various field cooling conditions reveals that small magnetic fields of 0.1 T significantly reduce the required electric fields needed to reach saturation. By applying electric fields during magnetic field dependent hysteresis measurements of magnetization M and polarization P an electrically controllable exchange bias was observed, a phenomenon exceedingly rare in single phase multiferroics. Furthermore, non-reversible electric switching of P and M domains was achieved under specific magnetic field conditions.
