扫描隧道显微镜
反离子
纳米技术
化学物理
自旋电子学
材料科学
电场
稀土
离子
量子
扫描探针显微镜
旋转动力学
化学
分子
凝聚态物理
物理
有机化学
冶金
铁磁性
量子力学
作者
Tolulope Michael Ajayi,Vijay Singh,Kyaw Zin Latt,Sanjoy Sarkar,Xinyue Cheng,Sineth Premarathna,Naveen Dandu,Shaoze Wang,Fahimeh Movahedifar,Sarah Wieghold,Nozomi Shirato,Volker Rose,Larry A. Curtiss,Anh T. Ngo,Éric Masson,Saw‐Wai Hla
标识
DOI:10.1038/s41467-022-33897-3
摘要
Complexes containing rare-earth ions attract great attention for their technological applications ranging from spintronic devices to quantum information science. While charged rare-earth coordination complexes are ubiquitous in solution, they are challenging to form on materials surfaces that would allow investigations for potential solid-state applications. Here we report formation and atomically precise manipulation of rare-earth complexes on a gold surface. Although they are composed of multiple units held together by electrostatic interactions, the entire complex rotates as a single unit when electrical energy is supplied from a scanning tunneling microscope tip. Despite the hexagonal symmetry of the gold surface, a counterion at the side of the complex guides precise three-fold rotations and 100% control of their rotational directions is achieved using a negative electric field from the scanning probe tip. This work demonstrates that counterions can be used to control dynamics of rare-earth complexes on materials surfaces for quantum and nanomechanical applications.
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