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Über dieses Buch

This book provides an easily understandable introduction to solid state physics for chemists and engineers. Band theory is introduced as an extension of molecular orbital theory, and its application to organic materials is described. Phenomena beyond band theory are treated in relation to magnetism and electron correlation, which are explained in terms of the valence bond theory and the Coulomb and exchange integrals. After the fundamental concepts of magnetism are outlined, the relation of correlation and superconductivity is described without assuming a knowledge of advanced physics. Molecular design of organic conductors and semiconductors is discussed from the standpoint of oxidation-reduction potentials, and after a brief survey of organic superconductors, various applications of organic semiconductor devices are described. This book will be useful not only for researchers but also for graduate students as a valuable reference.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Quantum Chemistry of Molecules

Abstract
Quantum chemistry is a starting point of molecular design. This chapter outlines the fundamentals of the molecular orbital theory, with particular emphasis on the Hückel approximation of π-conjugated molecules, which will be mentioned in the later chapters.
Takehiko Mori

Chapter 2. Quantum Chemistry of Solids

Abstract
Energy band theory is introduced as an extension of the molecular orbital theory, and applied to organic conductors. From this, we can discuss the Fermi surface of organic conductors.
Takehiko Mori

Chapter 3. Transport Properties

Abstract
Energy band theory is useful to understand various conducting phenomena of organic conductors. Based on the low-temperature magnetoresistance, we can investigate the Fermi surface of organic conductors.
Takehiko Mori

Chapter 4. Magnetism

Abstract
Localized electrons make magnets. This chapter describes fundamental aspects of magnetism, placing a particular emphasis on the mean-filed theory of magnetic order.
Takehiko Mori

Chapter 5. Electron Correlation

Abstract
The energy band theory predicts that all partially filled conductors are metallic, but many organic conductors are actually semiconducting due to the Coulomb interaction. In this chapter, Coulomb interaction between electrons is considered in the molecular orbital theory, and successively in the solid states. In particular, the Hubbard model accounts for the origin of the magnetic interactions as well as the Mott insulating state. The discussion is extended to charge-order systems with intermolecular Coulomb repulsion and the Kondo effect, where metallic and localized electrons are coexisting. Electron correlation is important to explain various phenomena that are not understood within the framework of the energy band theory.
Takehiko Mori

Chapter 6. Superconductivity

Abstract
This chapter outlines superconductivity. After various aspects of superconductivity are described, these phenomena are explained starting from the microscopic theory.
Takehiko Mori

Chapter 7. Charge-Transfer Complexes

Abstract
Highly conducting organic materials are achieved by charge transfer or chemical doping. In this chapter, charge transfer in organic electron donors and acceptors are analyzed based on the redox potentials and energy levels. Then, following the historical sequence, representative organic metals and superconductors are described.
Takehiko Mori

Chapter 8. Organic Semiconductors

Abstract
Organic semiconductors are used in organic electronic devices. After discussing basic physics of organic semiconductors, organic devices such as light-emitting diodes, transistors, and solar cells are described.
Takehiko Mori

Backmatter

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