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Information × Registration Number 0220U104557, 0120U103874 , R & D reports Title Thermoelectric properties and quantum Hall effects in topological insulators popup.stage_title Head Sharapov Serhii H., Доктор фізико-математичних наук Registration Date 22-12-2020 Organization Bogolybov Institute for Theoretical Physics of NASU popup.description2  Published 5 articles in leading Western and Ukrainian scientific journals and one preprint, which are devoted to the properties of Dirac materials. The Nernst-Ettinshausen effect in the Corbino-Laughlin geometry is studied, the expression for current oscillations at the edges of the disk is obtained, and the dependence of oscillations on the external magnetic field and the temperature difference of the edges is studied. The interaction between magnetic impurities in the system of quasiparticle excitations from pseudospin-1 on a dice lattice is calculated. It is shown that there are three types of interaction, two of which can be reduced to the graphene type, while the third is new and due to the presence of a disperseless flat zone with zero energy. The Green's function is constructed and the density of states in the tetragraph is calculated, and the existence of higher-order Van How singularities in the spectrum of quasiparticle excitations is established. The local density of states on the impurity node and its nearest neighbors in graphene is calculated and its evolution with increasing impurity potential is studied. A physically correct method for constructing non-Hermitian impurity models for point defects has been developed and a method for constructing the corresponding impurity Hamiltonians has been found. Product Description popup.authors Gorbar Eduard V. Gusynin Valeriy P. Loktev Vadym M. Skrypnyk Yuri V Shubnyi Volodymir O popup.nrat_date 2020-12-22 Close