Spin transport through magnetic insulators has been demonstrated in a variety of materials and is an emerging pathway for next-generation spin-based computing. To modulate spin transport in these systems, one typically applies a sufficiently strong magnetic field to allow for deterministic control of magnetic order. Here, we make use of the well-known multiferroic magnetoelectric, ${\mathrm{BiFeO}}_3$, to demonstrate nonvolatile, hysteretic, electric-field control of thermally excited magnon current in the absence of an applied magnetic field. These findings are an important step toward magnon-based devices, where electric-field-only control is highly desirable.

中文翻译：

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在没有外加磁场的情况下热磁振子的非易失电场控制

通过磁绝缘体的自旋传输已在多种材料中得到证明，并且是下一代基于自旋计算的新兴途径。为了调节这些系统中的自旋输运，通常会施加足够强的磁场以允许对磁序进行确定性控制。在这里，我们利用众所周知的多铁性磁电，${\mathrm{氧化铋}}_3$，以演示在没有施加磁场的情况下对热激发磁振子电流的非易失性、滞后性、电场控制。这些发现是朝着基于磁振子的设备迈出的重要一步，其中非常需要仅电场控制。