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Molecular molds for regularizing Kondo states at atom/metal interfaces.


ABSTRACT: Adsorption of magnetic transition metal atoms on a metal surface leads to the formation of Kondo states at the atom/metal interfaces. However, the significant influence of surrounding environment presents challenges for potential applications. In this work, we realize a novel strategy to regularize the Kondo states by moving a CoPc molecular mold on an Au(111) surface to capture the dispersed Co adatoms. The symmetric and ordered structures of the atom-mold complexes, as well as the strong d?-? bonding between the Co adatoms and conjugated isoindole units, result in highly robust and uniform Kondo states at the Co/Au(111) interfaces. Even more remarkably, the CoPc further enables a fine tuning of Kondo states through the molecular-mold-mediated superexchange interactions between Co adatoms separated by more than 12?Å. Being highly precise, efficient and reproducible, the proposed molecular mold strategy may open a new horizon for the construction and control of nano-sized quantum devices.

SUBMITTER: Li X 

PROVIDER: S-EPMC7244723 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Molecular molds for regularizing Kondo states at atom/metal interfaces.

Li Xiangyang X   Zhu Liang L   Li Bin B   Li Jingcheng J   Gao Pengfei P   Yang Longqing L   Zhao Aidi A   Luo Yi Y   Hou Jianguo J   Zheng Xiao X   Wang Bing B   Yang Jinlong J  

Nature communications 20200522 1


Adsorption of magnetic transition metal atoms on a metal surface leads to the formation of Kondo states at the atom/metal interfaces. However, the significant influence of surrounding environment presents challenges for potential applications. In this work, we realize a novel strategy to regularize the Kondo states by moving a CoPc molecular mold on an Au(111) surface to capture the dispersed Co adatoms. The symmetric and ordered structures of the atom-mold complexes, as well as the strong d<sub  ...[more]

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