DOI: https://doi.org/10.30970/jps.02.245
ABOUT THE ROLE OF THE FERMI-LIQUID EFFECTS ON THE ACOUSTIC TRANSPARENCY IN LAYERED CONDUCTORS
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Journal of Physical Studies 2(2), 245–249 (1998)
DOI: https://doi.org/10.30970/jps.02.245 ABOUT THE ROLE OF THE FERMI-LIQUID EFFECTS ON THE ACOUSTIC TRANSPARENCY IN LAYERED CONDUCTORS |
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O. Galbova, G. Ivanovski, D. Krstovska
Institute of Physics, Faculty of Natural Sciences, P. O. Box 162
Ss Cyril and Methodius University, Skopje, Macedonia
Attenuation of the acoustic wave which is polarized and propagates along the normal to the layer of the quasi–two–dimensional conductor in sufficiently strong magnetic fields, when the electron radius is much smaller than the sound wavelength, i.e. $kr\ll 1$, is investigated theoretically. The electroacoustic coefficients strongly depend on the orientation of the magnetic field. For certain values of the angle between the direction of the magnetic field and a normal to the layer, an anomalous acoustic transparency occurs. The role of the Fermi–liquid interaction between conduction electrons on the acoustic transparency effect is studied.