Inducing magnetism in pure organic molecules by single magnetic atom doping.
Inducing magnetism in pure organic molecules by single magnetic atom doping.
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DOI：
10.1103/physrevlett.113.106102
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发表时间：
2014-09
影响因子：
8.6
通讯作者：
V. Iancu;K. Braun;K. Schouteden;C. Van Haesendonck
中科院分区：
文献类型：
--
作者：
V. Iancu;K. Braun;K. Schouteden;C. Van Haesendonck
我们报道了有机三羧酸（TMA）配体与Co原子中心之间的原位化学反应。通过改变底物温度，我们能够探索Co-TMA相互作用，并创建新的磁性配合物，保持配体的化学结构。利用扫描隧道显微镜和光谱学，结合密度泛函理论计算，我们在原子或分子尺度上阐明了新合成的配合物的结构和性质。Co的原子轨道和配体的π轨道之间的杂化导致TMA上的自旋分布离域。这里展示了方便磁化这种多用途分子的可能性，为TMAs在分子自旋电子学中的应用开辟了新的潜在应用。
We report on in situ chemical reactions between an organic trimesic acid (TMA) ligand and a Co atom center. By varying the substrate temperature, we are able to explore the Co-TMA interactions and create novel magnetic complexes that preserve the chemical structure of the ligands. Using scanning tunneling microscopy and spectroscopy combined with density functional theory calculations, we elucidate the structure and the properties of the newly synthesized complex at atomic or molecular size level. Hybridization between the atomic orbitals of the Co and the π orbitals of the ligand results in a delocalized spin distribution onto the TMA. The here demonstrated possibility to conveniently magnetize such versatile molecules opens up new potential applications for TMAs in molecular spintronics.