Search academic texts

Information × Registration Number 0207U000122, 0104U002921 , R & D reports Title Modeling of size effect and of influence of external fields on physical properties of functional materials for electronic technique popup.stage_title Head Glinchuk Maya Davidovna, Registration Date 10-01-2007 Organization I.N.Frantsevich Institute for Probmens of Materials Sciences Ukrainian Academy of Science popup.description2 Core and shell model has been proposed and ground to calculate the size effects of nenoparticles properties. Polarization, permittivity, hysteresis characteristic of the thin segnetoelectric films were calculated. The dependence of the depolarization field on an electrode type was taken into account. All possible types of nanostructures have been analysed and classified on the nanostructure dimention and its components. A model of polyhedral monocrystal nanotubes for the diamond and wurtzite type crystals was proposed. Temperature dependence of the band structure in hexagonal modifications of A3B5 and A2B6 crystals has been calculated at first by the empirical pseudopotential method. Peculiarities of electron-atomic construction of low-dimentional systems have been studied. These systems have a tendency to form the charge-well ordered states and unusual dependence of physical properties on a chemical composition, a temperature, an external pressure and a strength of the magnetic field. Product Description popup.authors popup.nrat_date 2020-04-02 Close