Voltage control of interface rare-earth magnetic moments
Voltage control of interface rare-earth magnetic moments
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DOI：
10.1103/physrevlett.120.027201
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发表时间：
2017-09
期刊：
影响因子：
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通讯作者：
A. O. Leon;Adam B. Cahaya;G. Bauer
中科院分区：
文献类型：
--
作者：
A. O. Leon;Adam B. Cahaya;G. Bauer
稀土原子中的大自旋轨道相互作用意味着它们的电荷和自旋自由度之间存在强耦合。我们在绝缘体和金属之间的界面上公式化了电压和具有部分填充 4f 壳层的稀土原子的局部磁矩之间的耦合。稀土介导的扭矩允许通过电场引起的铁磁共振和磁化开关对自旋电子器件进行高能效控制。
The large spin orbit interaction in rare earth atoms implies a strong coupling between their charge and spin degrees of freedom. We formulate the coupling between voltage and the local magnetic moments of rare earth atoms with partially filled 4f shell at the interface between an insulator and a metal. The rare earth-mediated torques allow power-efficient control of spintronic devices by electric field-induced ferromagnetic resonance and magnetization switching.