论文标题
多功能Ferrimagnet ga $ _ {0.6} $ fe $ _ {1.4} $ o $ $ _ {3} $
Thermal spin current generation in the multifunctional ferrimagnet Ga$_{0.6}$Fe$_{1.4}$O$_{3}$
论文作者
论文摘要
近年来，多功能材料引起了人们对磁性记忆和能源收集应用的兴趣的日益增加。对于此目的，磁性绝缘材料是特别感兴趣的，因为它们允许由于较低的焦耳热损失而设计更有效的设备。在这种情况下，ga $ _ {0.6} $ fe $ _ {1.4} $ o $ _3 $（GFO）是SpinTronics应用程序的一个很好的候选者，因为它可以表现出多效性，并具有与A Yttrium Iron Garnet（Yig）/pt bt bt bt bt bt bt bt bttron的旋转Hall Magnetoresistance相似。在这里，我们探索了在片中使用热旋转测量值的GFO。通过仔细考虑热旋转设备的几何形状，我们可以在GFO/PT BiLayer中量化自旋seebeck效果和自旋电流的生成，获得了与YIG/PT相当的值。这进一步证实了有效的自旋电流产生的承诺，并有可能在绝缘铁磁材料中对系统的磁性进行电场操纵。
In recent years, multifunctional materials have attracted increasing interest for magnetic memories and energy harvesting applications. Magnetic insulating materials are of special interest for this purpose, since they allow the design of more efficient devices due to the lower Joule heat losses. In this context, Ga$_{0.6}$Fe$_{1.4}$O$_3$ (GFO) is a good candidate for spintronics applications, since it can exhibit multiferroicity and presents a spin Hall magnetoresistance similar to the one observed in a yttrium iron garnet (YIG)/Pt bilayer. Here, we explore GFO utilizing thermo-spin measurements in an on-chip approach. By carefully considering the geometry of our thermo-spin devices we are able to quantify the spin Seebeck effect and the spin current generation in a GFO/Pt bilayer, obtaining a value comparable to that of YIG/Pt. This further confirms the promises of an efficient spin current generation with the possibility of an electric-field manipulation of the magnetic properties of the system in an insulating ferrimagnetic material.
