期刊
ACS NANO
卷 16, 期 10, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.2c05609
关键词
1D metal-organic nanomaterials; magnetism; scanning tunneling microscopy; nickelocene; inelastic tunneling spectroscopy; X-ray magnetic circular dichroism; density functional theory
类别
资金
- Swiss National Science Foundation [P300P2_177755, 173720]
- University of Zurich Research Priority Program LightChEC Spanish - MCIN/AEI [PID2019-103910GB-I00]
- FEDER Una manera de hacer Europa
- Universidad del Pais Vasco UPV/EHU [GIU18/138]
- Gobierno Vasco, Praemium Academie of the Czech Academy of Sciences [IT-1246-19, IT-1260-19]
- Czech Science Foundation [20-13692X, 20-18741S, 21-09766S]
- MEYS CR [LM2018110]
- Swiss National Science Foundation (SNF) [P300P2_177755] Funding Source: Swiss National Science Foundation (SNF)
One-dimensional metal-organic coordination polymers possess complex magnetic structures that can be tuned by altering their chemical composition. However, the detailed understanding of the interactions governing electronic and magnetic properties in low-dimensional systems is still incomplete.
One-dimensional metal-organic chains often possess a complex magnetic structure susceptible to modifica-tion by alteration of their chemical composition. The possibility to tune their magnetic properties provides an interest i n g playground to explore quasi-particle interactions in low-dimensional systems. Despite the great effort invested so far, a detailed understand i n g of the interactions governing the electronic and magnetic properties of the low-dimensional systems is st i l l incomplete. One of the reasons is the limited abi l i t y to characterize their magnetic properties at the atomic scale. Here, we provide a comprehensive study of the magnetic properties of metal-organic one-dimensional (1D) coordina-tion polymers consisting of 2,5-diamino-1,4-benzoquinonedu mine ligands coordinated with Co or Cr atoms synthesized under ultrahigh-vacuum conditions on a Au(111) surface. A combination of integral X-ray spectroscopy with local-probe inelastic electron tunneling spectroscopy corroborated by multiplet analysis, density functional theory, and inelastic electron tunneling simulations enables us to obtain essential information about their magnetic structures, including the spin magnitude and orientation at the magneti c atoms, as wel l as the magnetic anisotropy.
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