Physical Acoustics V8 - 1st Edition - ISBN: 9780123956682, 9780323151955

Physical Acoustics V8

1st Edition

Principles and Methods

Editors: Warren P. Mason
eBook ISBN: 9780323151955
Imprint: Academic Press
Published Date: 1st January 1971
Page Count: 404
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Description

Physical Acoustics: Principles and Methods, Volume VIII discusses a number of themes on physical acoustics that are divided into seven chapters. Chapter 1 describes the principles and applications of a tool for investigating phonons in dielectric crystals, the spin phonon spectrometer. The next chapter discusses the use of ultrasound in investigating Landau quantum oscillations in the presence of a magnetic field and their relation to the strain dependence of the Fermi surface of metals. The third chapter focuses on the ultrasonic measurements that are made by pulsing methods with velocities obtained through phase comparison methods and attenuations obtained through comparing pulse heights for successive reflections. In Chapter 4, methods for measuring the properties of solids and liquids at very high pressures are described. Chapter 5 explores some of the relationships between the thermal equilibrium properties of solids and mechanical properties such as the second- and third-order elastic constants. The sixth chapter discusses the interaction of sound waves with thermal phonons in dielectric crystals and emphasizes the relationship between the various theories proposed and the effect of phonon interactions on the velocity of sound. The last chapter describes the applications to metals and rock mechanics of internal friction at low frequencies due to dislocations. This book is beneficial to students and physicists conducting work on physical acoustics.

Table of Contents

Contributors Preface 1 Spin-Phonon Spectrometer I. Introduction II. Spin-Ρhonon Interaction III. Optical Detection of the Spin Population IV. Divalent Thulium V. Detection of Monochromatic Acoustic Waves VI. Phonon Generation by Spins VII. Heaters as Broad-Band Phonon Sources VIII. Phonon Interference in Thin Liquid Helium Films Appendix. Derivation of Diffusion Equation References 2 Landau Quantum Oscillations of the Velocity of Sound and the Strain Dependence of the Fermi Surface I. Introduction II. Theory of Landau Quantum Effects III. Experimental Methods IV. Experimental Results V. Comparison with Existing Data VI. Summary References 3 High-Frequency Continuous Wave Ultrasonics I. Introduction II. Theory: Propagating Wave Model III. CW Ultrasonic Resonator Assemblies and Probes IV. CW Spectrometer Systems V. Sampled-CW Technique and Spectrometers VI. Acoustic Mössbauer Effect Spectrometer VII. Applications Appendix. Transmission-Line Equivalent Circuit of Composite Resonator References 4 Ultrasonic Measurements at Very High Pressures I. Introduction II. Review of Ultrasonic Measurements at High Pressures III. Ultrasonic Measurements in Piston and Die Systems IV. Summary References 5 Third-Order Elastic Constants and Thermal Equilibrium Properties of Solids I. Introduction II. Thermodynamics of Imperfect Crystals III. Dislocations IV. Point Defects V. Phonons References 6 Interaction of Sound Waves with Thermal Phonons in Dielectric Crystals I. Introduction II. Landau-Rumer Theory III. Boltzmann Equation Method IV. Comparison of Approaches V. Attenuation and Velocity for Ωτ < 1 VI. Attenuation and Velocity for Ωτ > 1 VII. Miscellaneous Problems Appendix Symbols References 7 Int

Details

No. of pages:
404
Language:
English
Copyright:
© Academic Press 1971
Published:
Imprint:
Academic Press
eBook ISBN:
9780323151955

About the Editor

Warren P. Mason

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