论文标题
通过THZ诱导的自旋连贯性赋予对抗铁磁铁的控制权
Empowering Control of Antiferromagnets by THz-induced Spin Coherence
论文作者
论文摘要
据信，找到有效的超快方法来控制抗铁磁铁，这在解锁其在THZ频率下运行的磁性设备的潜力有助于。尽管如此，在基态缺乏净磁化的挑战还是挑战。在这里，我们表明，来自抗铁磁铁硼酸铁Febo $ _3 $的连贯性自旋进液的磁化可以使用，以使光偶联到另一种，否则弱易感性的旋转式预动力模式。这种非线性机制可以从概念上促进控制抗铁磁性的新方法。
Finding efficient and ultrafast ways to control antiferromagnets is believed to be instrumental in unlocking their potential for magnetic devices operating at THz frequencies. Still, it is challenged by the absence of net magnetization in the ground state. Here, we show that the magnetization emerging from a state of coherent spin precession in antiferromagnetic iron borate FeBO$_3$ can be used to enable the nonlinear coupling of light to another, otherwise weakly susceptible, mode of spin precession. This nonlinear mechanism can facilitate conceptually new ways of controlling antiferromagnetism.
