BULLETIN OF THE LEBEDEV PHYISICS INSTITUTE
P.N.Lebedev Physics Institute of the Russian Academy of sciences

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1. Title:
NORMAL OSCILLATIONS OF TWO-DIMENSIONAL DUST CLUSTERS WITH A REGULAR POLYGON SHAPE WITH PARTICLE IN THE CENTER
Authors:
N.G. Gusein-zade, V.N. Tsytovich, S.G. Amiranashvili.



Abstract:


2. Title:
RAYLEIGH LINE WING IN A SOLUTION WITH A CLOSED PHASE SEPARATION REGION
Authors:
K.V. Kovalenko, S.V. Krivokhizha.



Abstract:


3. Title:
EFFECT OF AN ELECTRIC FIELD ON OPTICAL INTERBAND TRANSITIONS IN SEMICONDUCTOR HETEROSTRUCTURES
Authors:
P.V. Ratnikov, A.P. Silin.



Abstract:


4. Title:
ELECTROINDUCED SELECTIVE DRIFT OF AQUA-COMPLEXES IN SALT SOLUTIONS
Authors:
V.I. Boiko, M.A. Kazaryan, I.V. Shamanin, I.V. Lomov.



Abstract:
We discovered the phenomenon of electrically induced selective drift of aqua-complexes in aqueous salt solutions. It is shown that the effect is due to the excitation of rotational-translational motion of supramolecular formations (clusters) formed of water polar molecules around the central ions of the diluted salt. A theoretical model is proposed which points out the existence of a critical electric field for the formation of molecular ``bridges" when the central ion field is balanced by an oppositely aligned field of the ``bridge" of the arranged dipoles. We demonstrated experimentally an oriented drift of solvated Mg2+ and Ca2+ cations from a potential to an earthed electrode with a predominant excitation of Mg2+ cation drift: CMg/CCa = 1.232/1.056. The method proposed can find application for elemental and isotopic enrichment of salt solutions.


5. Title:
UP-CONVERSION ENERGY TRANSFER FROM THE 4S3/2 LEVEL OF Er3+ IONS IN YAlO3 AND YLiF4 CRYSTALS
Authors:
V.P. Danilov, V.P. Kalinushkin, M.I. Studenikin.



Abstract:


6. Title:
MEASUREMENT OF OPTICAL PATH LENGTH GRADIENTS USING CORRELATION PROCESSING OF DIGITAL PHOTOGRAPHS OF RANDOM PATTERNS
Authors:
V.N. Borkova, A.V. Kraisky, T.V. Mironova, T.T. Sultanov.



Abstract:


7. Title:
APPLICABILITY OF THE CONCEPT OF TOWNSEND COEFFICIENT IN STRONG ELECTRIC FIELDS
Authors:
A.N. Tkachev, S.I. Yakovlenko.



Abstract: