期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 7, 期 6, 页码 1154-1169出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201100992
关键词
Kondo effect; magnetic properties; molecular spintronics; single-molecule studies; terbium
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [20225003, 4482005]
- National Institute of Information and Communications Technology of Japan
- Grants-in-Aid for Scientific Research [20225003] Funding Source: KAKEN
Unlike electronics, which is based on the freedom of the charge of an electron whose memory is volatile, spintronics is based on the freedom of the charge, spin, and orbital of an electron whose memory is non-volatile. Although in most GMR, TMR, and CMR systems, bulk or classical magnets that are composed of transition metals are used, this Focus Review considers the growing use of single-molecule magnets (SMMs) that are composed of multinuclear metal complexes and nanosized magnets, which exhibit slow magnetic-relaxation processes and quantum tunneling. Molecular spintronics, which combines spintronics and molecular electronics, is an emerging field of research. Using molecules is advantageous because their electronic and magnetic properties can be manipulated under specific conditions. Herein, recent developments in [LnPc]-based multiple-decker SMMs on surfaces for molecular spintronic devices are presented. First, we discuss the strategies for preparing single-molecular-memory devices by using SMMs. Next, we focus on the switching of the Kondo signal of [LnPc]-based multiple-decker SMMs that are adsorbed onto surfaces, their characterization by using STM and STS, and the relationship between the molecular structure, the electronic structure, and the Kondo resonance of [TbPc2]. Finally, the field-effect-transistor (FET) properties of surface-adsorbed [LnPc2] and [Ln2Pc3] cast films are reported, which is the first step towards controlling SMMs through their spins for applications in single-molecular memory and spintronics devices.
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