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Перегляд Відділення фізики і астрономії за темою "Электронные структура и свойства"

Репозиторій DSpace/Manakin

Перегляд Відділення фізики і астрономії за темою "Электронные структура и свойства"

Сортувати за: Порядок: Результатів:

  • 3d–4f-интерметаллиды. Обмен и анизотропия. Многоэлектронная статистика 
    Мицек, А.И.; Пушкарь, В.Н. (Металлофизика и новейшие технологии, 2017)
    Магнитные свойства 3d(Fe)–4f(RE)-интерметаллидов рассчитываются введением многоэлектронных операторных спиноров (МЭОС) и флуктуаций химических связей как фурье-образов МЭОС. Получены зависимости Tc и температуры компенсации ...
  • Ab initio розрахунок магнітної взаємодії крайової дислокації та домішки кисню в кремнії 
    Плющай, І.В.; Плющай, О.І.; Макара, В.А. (Металлофизика и новейшие технологии, 2014)
    Методом функционала плотности в обобщённом градиентном приближении рассчитаны электронный спектр краевой дислокации в кристаллическом кремнии и электронный спектр сверхъячейки из 64 атомов Si, содержащей примесный атом ...
  • Analysis of Optical Radiation Emissions During GMAW Applications 
    Gursel, A.; Kurt, A. (Металлофизика и новейшие технологии, 2015)
    The GMAW (Gas Metal Arc Welding) technique and its radiation emissions are examined in this study. Three commonly used materials in industry, SS304-type stainless steel, A36 low-carbon steel, and T6061 aluminium, are chosen ...
  • Complex Investigation of the Fermi Surface in HfB₂ 
    Sichkar, S.M.; Antonov, V.N. (Металлофизика и новейшие технологии, 2015)
    The electronic structure, Fermi surface, angle dependence of the cyclotron masses, and extremal cross sections of the Fermi surface of the hafnium diboride are investigated from the first principles using the fully ...
  • Effect of Al Content on Magnetic Properties and Thermal Expansion of As-Cast High-Entropy Alloys AlxFeCoNiCuCr 
    Nadutov, V.M.; Makarenko, S.Yu.; Svystunov, Ye.O. (Металлофизика и новейшие технологии, 2015)
    The high-entropy alloys (HEA) AlxFeCoNiCuCr (x = 1.0, 1.5, 1.8) in cast state are investigated by means of X-ray diffraction, Mössbauer spectroscopy, magnetic and dilatometric methods. Two-phase state in the HEA and the ...
  • Electrical Resistivity of the Y(Ga,Al)₂, Y(Ga,Si)₂ and Y(Ga,Ge)₂ Solid Solutions with Structure of AlB₂ Type 
    Semen’ko, M.P.; Bilyavina, N.M.; Nakonechna, O.I. (Металлофизика и новейшие технологии, 2017)
    Electrical properties (resistivity and temperature coefficient of resistivity) of the Y(Ga,Al)₂, Y(Ga,Si)₂ and Y(Ga,Ge)₂ solid solutions are studied using the model coatings deposited on mica substrate. Analysis of temperature ...
  • Electronic Structure and X-Ray Magnetic Circular Dichroism in (Zn, T)O (T = V, Fe, Co) Diluted Magnetic Semiconductors 
    Bekenov, L.V.; Mazur, D.V.; Antonov, V.N.; Germash, L.P.; Erns, t A. (Металлофизика и новейшие технологии, 2013)
    The electronic structure of the (Zn, T)O (T = V, Fe, Co) diluted magnetic semiconductors is investigated theoretically from first principles, using the fully relativistic Dirac linear muffin-tin orbital band structure ...
  • Electronic Structure of the Rare-Earth Dihydride GdH₂ 
    Ayat, Z.; Daoudi, B.; Ouahab, A.; Boukraa, A. (Металлофизика и новейшие технологии, 2015)
    With the WIEN2k simulation code, the ab initio calculations of electronic properties for the cubic stoichiometric rare-earth dihydride GdH₂ (in the cubic fluorite structure) are performed using the full-potential linearized ...
  • First-Principles Calculation of Electronic Structure and Effective Mass of a TlInS₂ Crystal 
    Ismayilova, N.A.; Orudzhev, H.S. (Металлофизика и новейшие технологии, 2016)
    Electronic structure, DOS effective mass, conductivity effective mass, reduced effective mass are calculated for a TlInS₂ crystal from first principles within the framework of the density functional theory. The electronic ...
  • Interaction between Electron and Phonon Subsystems in Hafnium Diboride 
    Sichkar, S.M. (Металлофизика и новейшие технологии, 2014)
    Ab initio розрахунок функцій електрон-фононного зв’язку виконано за методом ЛМТО з використанням повного потенціалу. Низьке значення усередненої константи електрон-фононної взаємодії для HfB₂ λ=0,17 свідчить, що немає ...
  • Laser-Induced After-Effect in Tunnel Magnetic Nanostructures 
    Krupa, M.M.; Kostishin, V.G.; Korostil, A.M. (Металлофизика и новейшие технологии, 2014)
    The laser-induced magnetic after-effects in magnetic nanostructures consisting in magnet reversal under ultra-short circularly polarized laser pulses are studied. Using the magneto-optical method and a pump—probe technique ...
  • Magnetomechanical Effects in the Elastic Polymer Composites Containing Ferromagnetic Powder Particles 
    Likhachev, A.A.; Koval, Yu.N. (Металлофизика и новейшие технологии, 2018)
    In the present work, a detailed thermodynamic consideration for the magnetic free energy of the composite material consisting of the ferromagnetic powder particles embedded into a polymer matrix is given. We estimate their ...
  • Miniature Meander- and Fractal-Shaped Microstrip Resonators 
    Kalenyuk, A.A.; Futimsky, S.I. (Металлофизика и новейшие технологии, 2018)
    Numerical calculations of the characteristics of the meander- and fractal-shape (Hilbert curve) topologies of close-packed microstrip resonators are performed. The amplitude–frequency characteristics, resonance frequencies, ...
  • Neutron Diffraction Study of Fe₂MnGa Heusler Alloys 
    Kudryavtsev, Yu.V.; Perekos, A.E.; Glavatskyy, I.N.; Dubowik, J.; Skirta, Yu.B. (Металлофизика и новейшие технологии, 2016)
    Effect of temperature and magnetic field on the structure and magnetic properties of Fe₅₀.₁Mn₂₂.₇Ga₂₇.₂ і Fe₅₁.₆Mn₁₇.₈Ga₃₀.₆ alloys is investigated in a temperature range 100 К < T < 580 К by using elastic neutron diffraction ...
  • Precipitation Reactions in Nickel—Hydrogen System: ab initio Study 
    Teus, S.M. (Металлофизика и новейшие технологии, 2016)
    A type of precipitation reactions in the nickel—hydrogen system is studied by means of first-principle atomic calculations. The concentration dependence of solution enthalpy is calculated, and its second derivative is shown ...
  • Pseudogap and Local Pairs in High-Tc Superconductors 
    Solovjov, A.L.; Tkachenko, M.A. (Металлофизика и новейшие технологии, 2013)
    The temperature (T) dependence of pseudogap (PG) Δ*(T) is calculated for Bi2201 within the local pair (LP) model [1, 2]. The model is based on analysis of the excess conductivity derived from resistivity experiments in ...
  • Relaxation of strongly suppressed modulus of magnetization following ultrafast demagnetization 
    Yastremsky, I.A. (Металлофизика и новейшие технологии, 2014)
    A longitudinal nonlinear relaxation of magnetization following the ultrafast demagnetization is considered. As demonstrated, the fastest regime occurs for a small deviation of the magnetization from the equilibrium value. ...
  • Stationary Josephson Effect in Junctions Made of d-Wave Superconductors with Charge Density Waves 
    Gabovich, A.M.; Li, M.S.; Szymczak, H.; Voitenko, A.I. (Металлофизика и новейшие технологии, 2013)
    Dependences of the stationary Josephson current in symmetric and nonsymmetric tunnel junctions involving d-wave superconductors with charge density waves (CDWs) on the system parameters are calculated. Both the checkerboard ...
  • Suppression of Nearest Neighbour Electron Hopping in FeSe-Based Superconductors 
    Pustovit, Yu.V.; Kordyuk, O.A. (Металлофизика и новейшие технологии, 2018)
    In this paper, we evaluate the fitting parameters for the hopping model for the dxy and dxz bands within the Γ–M cut for different FeSe-based superconductors. Comparison of these parameters for DFT calculations and for ...
  • Temperature Evolution of Charge Carrier Density in the Centre of the Brillouin Zone of Fe(Se,Te) Superconductor 
    Pustovit, Yu.V.; Brouet, V.; Chareev, D.A.; Kordyuk, O.A. (Металлофизика и новейшие технологии, 2018)
    A characteristic feature of the electronic structure of iron-based superconductors is the shift of experimental electronic bands in comparison to the results of calculations. The temperature dependence of the band structure ...

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