Realization of Spin-dependent Functionality by Covering a Metal Surface with a Single Layer of Molecules

• DOI: 10.1021/acs.nanolett.9b02619
• Publication Date: 2019-08-20T14:16:44Z
• Authors: H. Isshiki; K. Kondou; S. Takizawa; K. Shimose; T. Kawabe; E. Minamitani; N. Yamaguchi; F. Ishii; A. Shiotari; Y. Sugimoto; S. Miwa; Y. Otani
• Keywords: Rashba effect; Spin states; Spin pumping

An interface of molecule and metal has attracted much attention in the research field nanoelectronics because their high degree design freedom. Here, we demonstrate an efficient spin-to-charge current conversion at surface covered by a single layer molecules. Spin currents are injected into between (Cu) lead(II) phthalocyanine means spin pumping method. observed voltage signal is caused inverse Edelstein effect, i.e., interface. The coefficient, length, estimated to be 0.40 ± 0.06 nm, comparable with largest Rashba splitting interfaces heavy metals. Interestingly, length strongly depends on thickness takes maximum value when molecules formed Cu surface. Comparative analysis scanning probe microscopy first-principles calculations reveal that formation state causes whose magnitude sensitive adsorption configuration