论文标题
通过分子设计调谐在铁磁/非磁铁接口处的自旋电流注入
Tuning Spin Current Injection at Ferromagnet/Non-Magnet Interfaces by Molecular Design
论文作者
论文摘要
对利用有机半导体的独特材料特性，越来越感兴趣。在这里，我们探索了基于dinaphtho [2,3-b：2,3-f] thieno [3,2-b]噻吩（DNTT）的纯旋转电流从permalloy注射到小分子系统中。通过分子设计对有机材料的独特可调性使我们能够系统地研究界面性能对自旋注入效率的影响。我们表明，界面处的自旋注射效率以及自旋扩散长度都可以通过界面分子结构和分子的侧链取代来敏感。
There is a growing interest in utilizing the distinctive material properties of organic semiconductors for spintronic applications. Here, we explore injection of pure spin current from Permalloy into a small molecule system based on dinaphtho[2,3-b:2,3-f]thieno[3,2-b]thiophene (DNTT) at ferromagnetic resonance. The unique tunability of organic materials by molecular design allows us to study the impact of interfacial properties on the spin injection efficiency systematically. We show that both, spin injection efficiency at the interface as well as the spin diffusion length can be tuned sensitively by the interfacial molecular structure and side chain substitution of the molecule.
