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Absorption of Ultrasound in Indium Antimonide
Author(s) -
Hrivnák L.,
Kovár J.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670230118
Subject(s) - attenuation coefficient , attenuation , indium antimonide , ultrasonic attenuation , condensed matter physics , materials science , thermal conductivity , ultrasound , lattice (music) , thermal expansion , atmospheric temperature range , thermodynamics , physics , optics , acoustics , composite material
The frequency dependence of the attenuation coefficient for longitudinal ultrasonic waves in InSb is determined over the range 50 to 210 MHz for temperatures between 200 and 600 °K. The experimental results are interpreted using the Woodruff‐Ehrenreich theory. It is shown that above 200 °K the attenuation coefficient decreases with increasing temperature according to the function A /(1 + β T ) and therefore the lattice thermal conductivity decreases as the function B / T (1 + β T ), in accordance with theories of lattice thermal conductivity.