title: The Frontier of Molecular Spintronics Based on Multiple-Decker Phthalocyaninato Tb(III) Single-Molecule Magnets.
abstract: Ever since the first example of a double-decker complex (SnPc2) was discovered in 1936, MPc2 complexes with π systems and chemical and physical stabilities have been used as components in molecular electronic devices. More recently, in 2003, TbPc2 complexes were shown to be single-molecule magnets (SMMs), and researchers have utilized their quantum tunneling of the magnetization (QTM) and magnetic relaxation behavior in spintronic devices. Herein, recent developments in Ln(III)-Pc-based multiple-decker SMMs on surfaces for molecular spintronic devices are presented. In this account, we discuss how dinuclear Tb(III)-Pc multiple-decker complexes can be used to elucidate the relationship between magnetic dipole interactions and SMM properties, because these complexes contain two TbPc2 units in one molecule and their intramolecular Tb(III)-Tb(III) distances can be controlled by changing the number of stacks. Next, we focus on the switching of the Kondo signal of Tb(III)-Pc-based multiple-decker SMMs that are adsorbed onto surfaces, their characterization using STM and STS, and the relationship between the molecular structure, the electronic structure, and the Kondo resonance of Tb(III)-Pc multiple-decker complexes.
authors.affiliation: Department of Chemistry Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.
authors.forename: Keiichi
authors.initials: K
authors.lastname: Katoh
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials (IMRAM, Tagen)Tohoku University, 22-1-1, Katahira, Aoba-Ku, Sendai 980-0877 (Japan)E-mail: komeda@tagen.tohoku.ac.jp Additional Supporting Information may be found in the online version of this article.
authors.forename: Tadahiro
authors.initials: T
authors.lastname: Komeda
authors.affiliation: Department of Chemistry Graduate School of Science, Tohoku University, 6-3, Aramaki-Aza-Aoba, Aoba-Ku, Sendai 980-8578, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamashita
keywords: Kondo resonance; magnetic dipole-dipole interaction; molecular electronics; multiple-decker complex; single-molecule studies