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Single-Molecule Magnets

Takeda, Keiji / Awaga, Kunio

Summary Single-molecule magnets (SMMs) are among the best materials for studies of nano-scale magnets. SMMs are located in the boundary region between the discrete atoms and the bulk magnets, and exhibit unusual classical and quantum magnetic properties such as meso-scale magnets. In this chapter, we will review the chemistry and physics of 12-nucleus Mn clusters (Mn12) as a SMM. After explaining the magnetization process and the quantum tunneling or coherence in Mn12, we will describe the magneto-structural correlation in Mn12, referring to the Jahn—Teller isomers of Mn12; a slight difference in structure at the Mn(III) site gives rise to a significant difference in magnetic relaxation. The possible application of SMMs is also described.

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Single-Molecule Magnets

Takeda, Keiji / Awaga, Kunio

Summary Single-molecule magnets (SMMs) are among the best materials for studies of nano-scale magnets. SMMs are located in the boundary region between the discrete atoms and the bulk magnets, and exhibit unusual classical and quantum magnetic properties such as meso-scale magnets. In this chapter, we will review the chemistry and physics of 12-nucleus Mn clusters (Mn12) as a SMM. After explaining the magnetization process and the quantum tunneling or coherence in Mn12, we will describe the magneto-structural correlation in Mn12, referring to the Jahn—Teller isomers of Mn12; a slight difference in structure at the Mn(III) site gives rise to a significant difference in magnetic relaxation. The possible application of SMMs is also described.

Single-Molecule Magnets

Takeda, Keiji / Awaga, Kunio

Summary Single-molecule magnets (SMMs) are among the best materials for studies of nano-scale magnets. SMMs are located in the boundary region between the discrete atoms and the bulk magnets, and exhibit unusual classical and quantum magnetic properties such as meso-scale magnets. In this chapter, we will review the chemistry and physics of 12-nucleus Mn clusters (Mn12) as a SMM. After explaining the magnetization process and the quantum tunneling or coherence in Mn12, we will describe the magneto-structural correlation in Mn12, referring to the Jahn—Teller isomers of Mn12; a slight difference in structure at the Mn(III) site gives rise to a significant difference in magnetic relaxation. The possible application of SMMs is also described.

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Titel:

Single-Molecule Magnets

Beteiligte:

Takeda, Keiji (Autor:in) / Awaga, Kunio (Autor:in)

Erschienen in:

Chemistry of Nanomolecular Systems ; 41-57

Springer Series in Chemical Physics ; 70

Erscheinungsdatum:

01.01.2003

Format / Umfang:

17 pages

ISBN:

978-3-642-07910-8 , 978-3-662-05250-1

ISSN:

DOI:

https://doi.org/10.1007/978-3-662-05250-1_3

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Electron Paramagnetic Resonance , Magnetization Curve , Easy Axis , Quantum Tunneling , Magnetic Relaxation Chemistry , Chemistry/Food Science, general , Atomic, Molecular, Optical and Plasma Physics , Nanotechnology , Surfaces and Interfaces, Thin Films , Physical Chemistry

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