Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves
Electrical detection of spin accumulation and spin precession at room temperature in metallic spin valves
复制标题
金属自旋阀室温下自旋积累和自旋进动的电检测
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
V. Wees
中科院分区：
文献类型：
--
作者：
F. Jedema;M. Costache;H. Heersche;J. Baselmans;V. Wees
我们制造了一个多端横向介观金属自旋阀，在室温（RT）下展示了自旋进动，使用隧道势垒与金属铁磁电极相结合作为自旋注入器和探测器。通过电子在扩散导体中的飞行时间实验来讨论和解释所观察到的由于自旋进动引起的输出信号的调制。在铝带中获得的自旋弛豫长度 λsf=500 nm 将使对自旋相关输运现象的详细研究成为可能，并允许人们探索电子自旋在室温下新电子应用的可能性。
We have fabricated a multiterminal lateral mesoscopic metallic spin valve demonstrating spin precession at room temperature (RT), using tunnel barriers in combination with metallic ferromagnetic electrodes as a spin injector and detector. The observed modulation of the output signal due to the spin precession is discussed and explained in terms of a time-of-flight experiment of electrons in a diffusive conductor. The obtained spin relaxation length λsf=500 nm in an aluminum strip will make detailed studies of spin dependent transport phenomena possible and allow one to explore the possibilities of the electron spin for new electronic applications at RT.