IIlISSION, ABSORPTION AND PROPAGATION OF ACOUSTIC TU.·WAVES IN SOLIDS
نویسنده
چکیده
Recent experimental develop menta in generation and detection of THz acoustical phonon. have led to studies of phonon emission, propagation and absorption in solidi. New resulta of this acoustical phonon spectroscopy concern phonon interaction. with collective excitations (phonons, photons, magnons), localized exoitations (resonant scattering of impurities, radiationleas transi. tions) and electronio exoitation" in metals, superconductors and semiconductors. The different experimental methods and their applications to phonon interaction atudiea are discussed.
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