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Ultrasonic Attenuation in Quasi‐One‐Dimensional Ferroelectrics
Author(s) -
Aksenov V. L.,
Yu. Didyk A.,
Plakida N. M.
Publication year - 1984
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.2221240105
Subject(s) - attenuation , ultrasonic attenuation , ultrasonic sensor , dispersion (optics) , acoustics , character (mathematics) , materials science , physics , condensed matter physics , optics , mathematics , geometry
The ultrasonic attenuation in uniaxial ferroelectrics with the stronglyanisotropic spectrum of order‐parameter fluctuations is considered. It is shown that quasi‐one‐dimensional character of fluctuations dispersion leads to qualitatively new effects in the behaviour of ultrasonic velocity and attenuation. The theory allows one to explain qualitatively recent experiments on ferroelectrics CsH 2 PO 4 .