Walter Ashley Harrison's Books

Theoretical Alchemy

Modeling Matter

By: Walter Harrison,Walter Ashley Harrison

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Theoretical Alchemy

Modeling Matter

By: Walter Harrison,Walter Ashley Harrison

The best way to understand chemical bonding may be to take a view appropriate to each individual system, a view which may be quite different for various systems. Sometimes two very different views are appropriate for the same system, and then the combination may even give the parameters needed to estimate the bonding energy by hand. Density Functional Theory, on the other hand, generally tries to take one view as applicable to all systems, and proceeds computationally.In contrast to the author's two previous well-known textbooks, Electronic Structure and the Properties of Solids (1989) and Elementary Electronic Structure (1999), in this book he tries to distill the essence of the representation of electronic structure in a much briefer description. It is shortened by focusing primarily on the bonding energies, the energy gained in assembling atoms as a molecule or a solid, or as a solid with a surface. A central point is that the same description of the electronic structure which gives this cohesion, can also be used to understand all of the other properties, though those other properties are not emphasized here. The effort is characterized by the title, which combines the modern word ?theory? with the ancient effort of ?alchemy? to make sense of the material world.

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Page Count

211

Publisher

World Scientific

Published Date

ISBN 10

981432213X

ISBN 13

9789814322133

Elementary Electronic Structure

By: Walter Ashley Harrison

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Elementary Electronic Structure

By: Walter Ashley Harrison

This is a revised edition of the 1999 text on the electronic structure and properties of solids, similar in spirit to the well-known 1980 text Electronic Structure and the Properties of Solids. The revisions include an added chapter on glasses, and rewritten sections on spin-orbit coupling, magnetic alloys, and actinides. The text covers covalent semiconductors, ionic insulators, simple metals, and transition-metal and f-shell-metal systems. It focuses on the most important aspects of each system, making what approximations are necessary in order to proceed analytically and obtain formulae for the properties. Such back-of-the-envelope formulae, which display the dependence of any property on the parameters of the system, are characteristic of Harrison's approach to electronic structure, as is his simple presentation and his provision of all the needed parameters.In spite of the diversity of systems and materials, the approach is systematic and coherent, combining the tight-binding (or atomic) picture with the pseudopotential (or free-electron) picture. This provides parameters ? the empty-core radii as well as the covalent energies ? and conceptual bases for estimating the various properties of all these systems. Extensive tables of parameters and properties are included.The book has been written as a text, with problems at the end of each chapter, and others can readily be generated by asking for estimates of different properties, or different materials, than those treated in the text. In fact, the ease of generating interesting problems reflects the extraordinary utility and simplicity of the methods introduced. Developments since the 1980 publication have made the theory simpler and much more accurate, besides allowing much wider application.

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Page Count

866

Publisher

World Scientific

Published Date

ISBN 10

9812387080

ISBN 13

9789812387080

Applied Quantum Mechanics

By: Walter Ashley Harrison

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Applied Quantum Mechanics

By: Walter Ashley Harrison

Quantum mechanics is widely recognized as the basic law which governs all of nature, including all materials and devices. It has always been essential to the understanding of material properties, and as devices become smaller it is also essential for studying their behavior. Nevertheless, only a small fraction of graduate engineers and materials scientists take a course giving a systematic presentation of the subject. The courses for physics students tend to focus on the fundamentals and formal background, rather than on application, and do not fill the need. This invaluable text has been designed to fill the very apparent gap.The book covers those parts of quantum theory which may be necessary for a modern engineer. It focuses on the approximations and concepts which allow estimates of the entire range of properties of nuclei, atoms, molecules, and solids, as well as the behavior of lasers and other quantum-optic devices. It may well prove useful also to graduate students in physics, whose courses on quantum theory tend not to include any of these applications. The material has been the basis of a course taught to graduate engineering students for the past four years at Stanford University.Topics Discussed: Foundations; Simple Systems; Hamiltonian Mechanics; Atoms and Nuclei; Molecules; Crystals; Transitions; Tunneling; Transition Rates; Statistical Mechanics; Transport; Noise; Energy Bands; Electron Dynamics in Solids; Vibrations in Solids; Creation and Annihilation Operators; Phonons; Photons and Lasers; Coherent States; Coulomb Effects; Cooperative Phenomena; Magnetism; Shake-off Excitations; Exercise Problems.

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Page Count

376

Publisher

World Scientific

Published Date

ISBN 10

9810243758

ISBN 13

9789810243753

Applied Quantum Mechanics

By: Walter Ashley Harrison

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Applied Quantum Mechanics

By: Walter Ashley Harrison

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376

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World Scientific

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ISBN 10

9810243758

ISBN 13

9789810243753

Practical Alchemy: A Memoir

By: Walter A Harrison

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Practical Alchemy: A Memoir

By: Walter A Harrison

Writing a memoir was not only an interesting experience for this Professor of Applied Physics at Stanford University, but it also provided him an opportunity to revisit his past with his sons. The author graduated from Cornell in 1953 in Engineering Physics and received his PhD in Physics in 1956 at the University of Illinois. He was then at the General Electric Research Laboratory until 1965, when he moved to Stanford. He has seen his life transform from a physics student to husband, father, author, professor, scoutmaster, von Humboldt scholar, and sometimes musician. His published books include Pseudopotentials, Solid State Theory, Elementary Electronic Structure, and Applied Quantum Mechanics. Here he draws a parallel with the ancient alchemical goal of transforming lead into gold. The reader will find this engaging memoir rich in anecdotes and stories that constitute the various transformations resulting in what may be called a 'golden experience'.

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Page Count

185

Publisher

World Scientific

Published Date

ISBN 10

9813277599

ISBN 13

9789813277595

Elementary Electronic Structure

By: Walter Ashley Harrison

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Elementary Electronic Structure

By: Walter Ashley Harrison

Harrison has provided a new text on the electronic structure and properties of solids. It is similar in spirit to his well-known 1980 text (Electronic Structure and the Properties of Solids) on the same subject but is otherwise entirely new. It covers covalent semiconductors, ionic insulators, simple metals, and transition-metal and f-shell-metal systems. It focuses on the most important aspects of each system, making what approximations are necessary in order to proceed analytically and obtain formulae for the properties. The book is written as a text, with problems at the end of each chapter. Other problems can readily be generated by asking for estimates of different properties, or different materials, from those treated in the text. In fact, the ease of generating interesting problems reflects on the extraordinary utility and simplicity of the methods introduced. Developments since the 1980 publication have made the theory simpler than before, much more accurate, and allowed much wider application.

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Page Count

848

Publisher

World Scientific

Published Date

ISBN 10

9810238959

ISBN 13

9789810238957

Book's by Walter Ashley Harrison

Theoretical Alchemy

Theoretical Alchemy

Elementary Electronic Structure

Elementary Electronic Structure

Applied Quantum Mechanics

Applied Quantum Mechanics

Applied Quantum Mechanics

Applied Quantum Mechanics

Practical Alchemy: A Memoir

Practical Alchemy: A Memoir

Elementary Electronic Structure

Elementary Electronic Structure

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