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Thermally activated depolarization currents in a thin water interlayer enclosed between two electrically active surfaces of a muscovite crystal are investigated in a wide temperature interval. The results obtained indicate polymorphism of the crystal structure of the water interlayer and anisotropic character of the orientational polarization of these layers and confirm the correctness of the polylayer physical model. Despite many works devoted to a study of the electrokinetic processes in heterogeneous systems, the conductivity mechanisms and the structure of energy spectra have yet to be elucidated. This is caused by their complex structure due to the presence of many local inhomogeneities in natural crystalline materials. In addition, among the special features hindering the study of the phenomena proceeding in these materials are long-term relaxation processes in atomic, molecular, and supermolecular systems of the given substance.A vivid example of such substances is micas that possess the unique property of forming ideal molecular even surfaces when they are cleaved; simultaneously, they have a complex layered structure. This property determines a high degree of anisotropy of their physical properties in two main directions parallel and perpendicular to the cleavage plane. Newly cleaved mica crystal surfaces possess a very high electrical activity and absorptivity of polar molecules. Nowadays, investigation of the properties of dominant electrically active defects in micas is at the stage of studying and generalizing experimental material.In the present work, results of investigations into the structural features of a water interlayer injected into a cleavage in a mica crystal by the method of spectroscopy of thermally activated dielectrics are presented that allow the phenomena of charge transfer and the mechanisms of electrical conductivity to be elucidated. The given method can be used to determine the mobility and localization of charge carriers in layered materials. In [1, 2], uncompensated charges were observed on newly cleaved surfaces of the mica crystal. The occurrence of charges on the crystal surface can be explained as follows: the mica crystal is cleaved along the perfect cleavage plane comprising a network of positive potassium (K + ) and negative hydroxyl ions (OH -). These ions are nonuniformly distributed over each newly cleaved surface. In this case, partial isomorphic substitution occurs of potassium ions by impurity ions with smaller sizes, including lithium, sodium, and calcium ions always present in micas.To investigate the structure of the water interlayer, samples were prepared as follows: silver electrodes were symmetrically deposited on the external surfaces of thin muscovite plates having areas of (2 × 4) × 10 -2 m 2 , then the muscovite plates were slightly split from the end face, and doubly distilled water layer whose thickness increased from 0.14 × 10 -6 to 0.2 × 10 -6 m was injected into the cleavage. The sample so prepared was then sealed by melted picein. The thicknesses of...

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