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Ultrasonic Attenuation in Lanthanum Monochalcogenides from 5 K to 500 K

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Abstract:

Ultrasonic attenuation studies have been made theoretically due to electron-phonon interaction between 5 K to 80 K and due to phonon-phonon interaction between 100 K to 500 K. The compounds studied are LaS, LaSe and LaTe, which are intermetallics. The appropriate potential suitable for studying physical properties of metals, the Morse potential, has been used to evaluate SOEC and TOEC. Mason's approach for evaluation of ultrasonic attenuation from the Gr√ľneisen numbers are obtained using SOEC and TOEC. The results are interesting and have been discussed.

Document Type: Research Article

Publication date: 2003-01-01

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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