Soe We-Hyo, Robles Roberto, de Mendoza Paula, Echavarren Antonio M, Lorente Nicolas, Joachim Christian
Centre d'Elaboration de Matériaux et d'Études Structurales (CEMES), Centre National de la Recherche Scientifique (CNRS), Université de Toulouse, 29 Rue J. Marvig, BP 94347, Cedex 31055 Toulouse, France.
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Material Sciences (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
Nano Lett. 2021 Oct 13;21(19):8317-8323. doi: 10.1021/acs.nanolett.1c02881. Epub 2021 Sep 14.
Starting from a long aza-starphene neutral and nonmagnetic organic molecule, a single-molecule magnet is on-surface constructed using up to 3 light nonmagnetic aluminum (Al) atoms. Seldom observed in solution with transition-metal atoms and going from 1 to 3 Al coordinated atoms, the doublet-singlet-doublet transition is easily on-surface accessible using the scanning tunneling microscope single-atom and single-molecule manipulations on a gold(111) surface. With 3 coordinated Al atoms, the lateral vibration modes of the Al-aza-starphene molecule magnet are largely frozen. Using the Kondo states, this opens the observation of the in-phase Al vertical atom vibrations and out-of-phase central phenyl vibrations.
从一个长的氮杂星烯中性非磁性有机分子出发，在表面构建了一种单分子磁体，其中使用了多达3个轻质非磁性铝（Al）原子。在溶液中很少能观察到过渡金属原子，并且随着Al配位原子从1个增加到3个，利用扫描隧道显微镜在金（111）表面进行单原子和单分子操纵，很容易在表面实现双态-单态-双态转变。对于具有3个配位Al原子的情况，Al-氮杂星烯分子磁体的横向振动模式在很大程度上被冻结。利用近藤态，这开启了对Al垂直原子的同相振动和中心苯基的异相振动的观测。
