Artificial multiferroics provide a tunable magnetoelastic and magnetoelectric coupling owing to the variety of combinations of ferroelectric and ferromagnetic layers, hence facilitate a better perspective for device applications such as magnetic field sensors and electric write magnetic -read memory devices. The intertwined physical properties can be controlled via external parameters such as electric field, temperature, and magnetic field. Here, we report an additional mode to manoeuvre the magnetoelastic and magnetoelectric coupling in an epitaxial SrRuO₃/BaTiO₃ multiferroic heterostructure using polarized visible light illumination. The light-induced ferroelastic (FE) domain wall motion in underlying BaTiO₃ leads to photostriction and photodomain effects. Consequently, the change in the converse magnetoelastic effects leads to modify the magnetic properties of the above grown SrRuO₃ layer. Besides this, we have observed a sharp and persistent changes in the SrRuO₃/ BaTiO₃ heterostructure, when the system is electrically biased owing to the change in the interfacial converse magnetoelectric coupling. Light controlled magnetization tunability in BaTiO₃-based artificial multiferroic can open an alternate way for potential applications in several types of wireless devices and magnetic field sensors, electric write magnetic-read memory devices and other interesting optomechanical systems. Our findings in this context can be proven indeed as a novel prospective for opto-spintronics device applications.

由于铁电层和铁磁层的多种组合，人工多铁性材料提供了可调的磁弹性和磁电耦合，因此有助于更好地看待磁场传感器和电写磁读存储设备等设备应用。相互交织的物理特性可以通过电场、温度和磁场等外部参数进行控制。在这里，我们报告了一种使用偏振可见光照明在外延 SrRuO ₃ /BaTiO _{3多铁异质结构中操纵磁弹性和磁电耦合的附加模式。底层 BaTiO 3}中的光致铁弹性 (FE) 畴壁运动导致光致伸缩和光畴效应。_{因此，逆磁致弹性效应的变化导致上述生长的 SrRuO 3}层的磁性发生改变。除此之外，当系统由于界面逆磁电耦合的变化而产生电偏置时，我们观察到 SrRuO ₃ / BaTiO _{3异质结构发生急剧而持续的变化。BaTiO 3}中的光控磁化可调性基于-的人工多铁性可以为多种类型的无线设备和磁场传感器、电写磁读存储设备和其他有趣的光机械系统的潜在应用开辟一条替代途径。我们在这方面的发现确实可以证明是光自旋电子器件应用的新前景。