Porphyrin π-Radical Kondo Chains

Odd-even zero-mode effects

Atomically precise Kondo chains on Au(111) exhibit parity-dependent quantum effects, enabling coherent coupling between radical spins.

Zhao, Yan · Jiang, Kaiyue · Liu, Peng · Li, Jie · Li, Ruoning · Li, Xin · Zhu, Yutong · Chen, Ting · Wang, Dong · Zhuang, Xiaodong · Hou, Shimin · Wu, Kai · Gao, Song · Sun, Qingfeng · Zhang, Yajie · Wang, Yongfeng

Journal of the American Chemical Society 2025

Specifications

porphyrin-based Kondo chains

{'zh': '', 'en': '7'} units

Advantages

Odd-length chains exhibit zero-mode distribution; even-length chains do not

Number of parallel chains nonmonotonically tunes Kondo vs. spin exchange