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Information × Registration Number 0213U005990, 0111U009545 , R & D reports Title Phase transformations, transfer phenomena and electromagnetic processes in heterogeneous condensed media with a complex structure popup.stage_title Head Slezov Vitaly, Registration Date 10-10-2013 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 2. The relaxation between phonon and electron subsystems in a solid state is considered in the case when in each subsystem the equilibrium is already reached, the distribution function of electrons and phonons are equilibrium ones, and each of them corresponds to its own temperature. It is shown that at high temperature the amount of heat transferred from electrons to phonons is proportional to a difference of the first degrees of their temperatures. At low temperature, much less than Debye temperature, the heat exchange is nonlinear in temperature and depends on dimensionality of phonon system. In case of bulk phonons the heat transfer is proportional to the difference of fifth degrees of temperatures, while in case of surface phonons it is proportional to the difference of the fourth degrees. The general formula is derived which takes into account the nonlinear law of phonon dispersion and arbitrary dimensionality of their phase space. Product Description popup.authors Абизов Олександр Сергійович Білозоров Дмитро Павлович Безуглий Олексій Іванович Давидов Леонід Миколайович Кіценко Юрій Олександрович Копійченко Денис Юрійович Мчедлов-Петросян Петро Отарович Осмаєв Олег Аданійович Полуектов Юрій Матвійович Сльозов Віталій Валентинович Сорока Олексій Олександрович Танатаров Ігор Володимирович Шаповалов Роман Володимирович Шкловський Валерій Олександрович popup.nrat_date 2020-04-02 Close