Abstract
Quantum mechanism of interlayer polarization in condensed mediums in alternating electric field in the limits of low and extra-low temperatures is studied. Unbalanced density matrix is calculated for the ensemble of noninteracting protons, moving in one-dimension multipit potential image of rectangular shape in variable polarizing field. With the help of unbalanced density matrix, anomalous effects are studied, connected with the move of low-temperature maximum loss tangent of dielectric in lamellar crystals towards the temperatures of liquid helium. Results of quantummechanical calculation of spectra of complex dielectric permittivity (SCDP) may be used in the study of tunnel mechanism of spontaneous polarization of ferrielectrics (KDP, DKDP). Key – words: hydrogen – bonded crystals (HBC); interlayer polarization; proton relaxation; unbalanced proton density matrix; quantum statistic for the ensemble of non - interacting protons; spectra of complex dielectric permittivity (SCDP); anomalous effects during the proton relaxation
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