Detection of Spin Transfer from Metal to Molecule by Magnetoresistance Measurement
Detection of Spin Transfer from Metal to Molecule by Magnetoresistance Measurement
复制标题
通过磁阻测量检测从金属到分子的自旋转移
DOI：
10.1021/acs.nanolett.9b03110
复制
发表时间：
2020
期刊：
影响因子：
10.8
通讯作者：
and S. Miwa,
中科院分区：
文献类型：
--
作者：
H. Gamou;K. Shimose;R. Enoki;E. Minamitani;A. Shiotari;Y. Kotani;K. Toyoki;T. Nakamura;Y. Sugimoto;M. Kohda;J. Nitta;and S. Miwa,
分子中的定域电子自旋态具有相对较长的自旋寿命，因而受到人们的广泛关注。在这项研究中，我们表征的磁电阻的系统，包括Pt和Fe（II）-酞菁（FePc）分子。磁电阻测量与弱反局域化分析表明，磁矩在FePc作为磁性杂质的导电电子在Pt。此外，我们发现，磁电阻涉及一个组件，具有相同的对称性自旋霍尔磁电阻。这些结果揭示了自旋角动量从金属Pt转移到FePc分子中的磁矩，这可以用作分子系统中的自旋扭矩。
Localized electronic spin state in molecules has a relatively long spin lifetime and has thus attracted much attention. In this study, we characterize the magnetoresistance of a system comprising Pt and Fe(II)-phthalocyanine (FePc) molecules. The magnetoresistance measurement with the weak antilocalization analysis reveals that a magnetic moment in FePc acts as magnetic impurities for conduction electrons in Pt. Moreover, we find that the magnetoresistance involves a component that possesses the same symmetry as spin-Hall magnetoresistance. These results reveal the spin-angular momentum transfer from metallic Pt to a magnetic moment in FePc molecules, which can be used as a spin torque in a molecular system.