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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.
1 Spin-Phonon Spectrometer
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
2 Landau Quantum Oscillations of the Velocity of Sound and the Strain Dependence of the Fermi Surface
II. Theory of Landau Quantum Effects
III. Experimental Methods
IV. Experimental Results
V. Comparison with Existing Data
3 High-Frequency Continuous Wave Ultrasonics
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
Appendix. Transmission-Line Equivalent Circuit of Composite Resonator
4 Ultrasonic Measurements at Very High Pressures
II. Review of Ultrasonic Measurements at High Pressures
III. Ultrasonic Measurements in Piston and Die Systems
5 Third-Order Elastic Constants and Thermal Equilibrium Properties of Solids
II. Thermodynamics of Imperfect Crystals
IV. Point Defects
6 Interaction of Sound Waves with Thermal Phonons in Dielectric Crystals
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
7 Internal Friction at Low Frequencies Due to Dislocations: Applications to Metals and Rock Mechanics
II. Measurement of Internal Friction for Three Rocks
III. Grain Boundary Internal Friction and Dislocation Parameters
IV. Derivation of the Low- and High-Frequency Components of Dislocation Attenuation
V. Application of Theory to Alloys and Impure Metals
VI. Application of Dislocation Theory to the Internal Friction in Moon and Earth Rocks
Contents of Previous Volumes
- No. of pages:
- © Academic Press 1971
- 1st January 1971
- Academic Press
- eBook ISBN:
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