One of the main challenges for the modern magnonics, which, as opposed to the conventional electronics, operates with quanta of spin waves in magnetically ordered materials—magnons—is energy efficient control of magnon transport on small time and space scales. The magnon propagation in a time-dependent periodic spatial potentials—dynamic magnonic crystals—paves a way to this aim. To date, dynamic manipulation of the magnonic crystals has been realized with electric current and optic control influence. However, both approaches show limited potential for reduction in energy consumption and miniaturization of magnonic circuits. Voltage (or electric field) control of magnon currents promises to be fast and low energy consuming. It can be achieved in ferrite-ferroelectric (multiferroic) heterostructures, where strong coupling of magnons and microwave photons constitutes new quasiparticles called electromagnons. Here, we present an experimental realization of a voltage-controlled dynamic electromagnonic crystal operating with electromagnons at microwave frequencies.

与常规电子设备相反，现代磁能器的主要挑战之一是在磁有序材料（磁振子）中使用自旋波的量子进行操作，这是在小时空尺度上高效地控制磁振子的传输。随时间变化的周期性空间电势中的磁振子传播-动态磁晶晶体-为实现这一目标铺平了道路。迄今为止，在电流和光学控制的影响下，已经实现了对镁磁晶体的动态操纵。然而，这两种方法都显示出减少能量消耗和使大型电子电路小型化的潜力。磁振电流的电压（或电场）控制有望实现快速且低能耗。它可以在铁氧体-铁电（多铁性）异质结构中实现，在那里，强磁子和微波光子的强耦合构成了新的称为电磁子的准粒子。在这里，我们介绍了在电磁波频率下以电磁波工作的电压控制动态电磁晶体的实验实现。