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  • Formation of gap edges and shift of Fermi level in As2S3 - based glass alloys with addition of germanium 
    ANDRIESH, A. M.; TSIULYANU, D. I. (Elsevier, 1987)
    The gap formation with the composition change is studied on the basis of complex analysis of the experimental results obtained by investigation of optical absorption and conductivity of both As2S3 Ge glassy materials and ...
  • Commutation Effect in the Magneto-Thermopower of Bi0.88Sb0.12 Alloy 
    BODIUL, P. P.; BOKO, M. P.; GITSU, D. V.; REDKO, N. A. (John Wiley & Sons, Inc., 1987)
    An anisotropic materials under certain conditions a commutation effect (a dependence of thermomagnetic kinetic coefficients on the charge of the magnetic field direction may occur).
  • The Impurity States in Bismuth 
    BODIUL, P. P.; GARABAZHIU, V. F.; GITSU, D. V. (John Wiley & Sons, Inc., 1987)
    The influence of a lattice deformation and the degree of valency states filling of the impurity atom on the impurity subsystem behaviour is investigated. The states are found in which the electron is localized in the region ...
  • The Bihole in Quantum Well Structures 
    BOBRYSHEVA, A. I.; RUSSU, S. S.; ZALOJ, V. A. (John Wiley & Sons, Inc., 1987)
    In GaAs–Ga1−xAlxAsmany quantum well structures or superlattices the top valence subband VB1 of size quantization is heavy-hole-like HH1 and the effective mass m1 is positive. The second valence subband VB2 has a heavy-hole ...
  • The fundamental absorption edge of PbGa2S4 
    NEUMANN, H.; HÖRIG, W.; NOOKE, G.; SYRBU, N. N. (Elservier, 1988)
    Optical absorption spectra of PbGa2S4 are measured in the photon energy range from 2.0 to 3.2 eV and for temperatures between 32 and 300 K. PbGa2S4 is found to be an indirect-gap semiconductor with a gap energy of 2.84 eV ...
  • Light Absorption and Hyper-Raman Scattering by Many-Electron Complexes in Quantum Well Structures 
    BOBRYSHEVA, A. I.; RUSSU, S. S.; ZALOI, V. A. (John Wiley & Sons, Inc., 1988)
    It is shown that in GaAs/AlxGa1-xAs multiple-quantum well structures bihole formation is possible. Also the main features of biexciton hyper-Raman scattering are established.
  • Dimensional crossover 3D-2D-3D in superconducting layered V/Cu structures 
    DEDYU, V. I.; OBOZNOV, V. A.; RYAZANOV, V. V.; SANDLER, A. G.; SIDORENKO, A. S. (Российская академия наук, 1989)
    A temperature-dependent nonmonotonic variation of the superconducting transition width has been observed in multilayer vanadium-copper structures in a magnetic field. The critical field Hc2 was also observed to vary as a ...
  • Dimensional effects in layered superconductor 
    DEDIU, V. I.; SANDLER, A. G.; SIDORENKO, A. S. (ELSEVIER, 1989)
    The critical magnetic fields HC2 of the superconducting layered structures V/Cu were investigated. The double dimensional crossover 3D -> 2D -> 3D was observed on the temperature and angular dependences of critical magnetic ...
  • Relaxation of the magnetisation in superconducting oxides 
    GABOVICH, A. M.; MOISEEV, D. P.; PANAITOV, G. I.; POSTNIKOV, V. M.; SIDORENKO, A. S.; SIMONOV, A. Yu. (World Scientific, 1989)
    Relaxation of the thermoremanent magnetisation M in oxide superconductors BaPb0.75Bi0.25O3, YBa2Cu3O7−δ, Bi2Sr2CaCu2Ox and Bi4Sr3Ca4Cu4Ox is measured at T=4.2 K by the SQUID magnetometer. It is well described by the law ...
  • Resistive Transition Broadening of Metal-Oxide Superconductors in Magnetic Fields 
    SIDORENKO, A. S.; KONOPKO, L. A.; KOSHELEV, A. E.; SIMONOV, A. Yu. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1989)
    This note reports results of measurements and calculations of a shape of superconductive transitions of Bi-Sr-Ca-Cu-O polycrystalline samples. Bi4Sr3Ca3Cu4Ox samples with 2x3x10 mm3 dimensions were prepared by solid-state ...
  • Sign-reversal thermopower in BI2SR2CACU2OY 
    BOIKO, M. P.; KANTSER, V. G.; KONOPKO, L. A.; SIDORENKO, A. S. (Elservier, 1989)
    Sign-reversal thermopower was observed in the single-phase superconductor Bi2Sr2CaCu2Oy. We consider the model density of states, which describes the thermopower behaviour.
  • Оптические свойства монокристаллов TLSBS2 
    ГИЦУ, Д. В.; ГРИНЧЕШЕН, И. Н.; КРАСОВСКИЙ, В. Ф.; МОРОЗОВА, В. И.; СЫРБУ, Н. Н.; ПОПОВИЧ, Н. С. (Russian Academy of Sciences, 1989)
    В данной работе приведены результаты исследования поглощения, отражения и люминесценции монокристаллов TlSbS2 в поляризованном свете. Оптические спектры изучались при температуре кристаллов 2 К на установке, собранной на ...
  • Тонкопленочные солнечные элементы с двусторонней чувствительностью на гетероструктурах (Al, Ga)As 
    АНДРЕЕВ, В. М.; ВИЕРУ, Т. С.; ДОРОГАН, В. В.; ТРОФИМ, В. Г. (Ioffe Institute, RAS, 1989)
    В настоящей работе приводятся результаты исследования тонкопленочных солнечных элементов (ТСЭ) с двусторонней чувствительностью на основе гетероструктур (Al, Ga) As площадью 2 см2.
  • Infrared lattice vibration study of CuIn5S8 
    NEUMANN, H.; SOBOTTA, H.; RIEDE, V.; TEZLEVAN, V. E.; SYRBU, N. N. (WILEY‐VCH Verlag GmbH & Co. KGaA, 1990)
    Infrared reflectivity spectra of the spinel compound CuIn5S8 are measured at room temperature in the wavenumber range from 180 to 4000 cm−1. It is found that the spectra are dominated by two strong modes with frequencies ...
  • Absorption edge and dispersion of the refractive index of arsenic-sulfur-germanium layers with an increased sulfur concentration 
    TSIULYANU, D. I.; GUMENYUK, N. A. (Springer Nature Switzerland, 1990)
    The interest in the optical properties of glassy materials of the As-S-Ge system and thin layers based on them has increased recently owing to the development of electro-optics and integrated optics. These materials form ...
  • Анодный электродный процесс в халькогенидных стеклообразных полупроводниках, стимулированный внешними воздействиями 
    АНДРИЕШ, А. М.; НЕФЕДОВ, В. Я .; ЦИУЛЯНУ, Д. Я .; СОКОЛОВ, А. Н.; ТРИДУХ, Г. М.; ГРИНШПУН, Л. Б. (Ioffe Institute, RAS, 1990)
    В качестве объекта исследований использовались тонкослойные структуры Al—As 2S8Ge 4 , изготовленные термическим вакуумным напылением на стеклянные подложки с предварительно нанесенным проводящим слоем двуокиси олова. ...
  • Optical Properties of Biexcitons in ZnSe/Zn1−xMnxSe Quantum Wells 
    BOBRYSHEVA, A. I.; RUSSU, S. S. (John Wiley & Sons, Inc., 1990)
    It is shown that in ZnSe/(Zn, Mn)Sequantum wells six biexcitonic states can exist. The group-theoretical classification of these states is performed. The probabilities of biexciton two-photon absorption, hyper-Raman ...
  • Double-dimensional crossover in layered superconductor 
    SIDORENKO, A. S.; DEDIU, V. I.; SANDLER, A. G. (Springer Nature Switzerland, 1991)
    The critical magnetic fields Hc2 of superconducting layered structures V/Cu were investigated. The double-dimensional crossover 3D-2D-3D was observed on the temperature (H′c2(θ)) dependences of critical magnetic fields. ...
  • Effective dimensionality fluctuation change in V/Cu layered superconductors 
    DEDIU, V. I.; KABANOV, V. V.; SANDLER, A. G.; SIDORENKO, A. S. (ELSEVIER, 1991)
    The fluctuation conductivity σ′ of layered structures V/Cu was measured in a parallel magnetic field. Unusual behaviour of the fluctuation conductivity consisting of double dimensional crossover 3D-2D-3D was observed.
  • Scaling behaviour of relaxation dependences in metaloxide superconductors 
    SIDORENKO, A. S.; PANAITOV, G. I.; GABOVICH, A. M.; MOISEEV, D. P.; POSTNIKOV, V. (Springer Nature Switzerland, 1991)
    In the present work we have measured the magnetization relaxation at T = 4-2 K in two substantially different superconductors: BaPbo.~sBio.250 3 (BPB, T~ 10K, Hcx ~ 12 Oe) and YBa2Cu307_ x (YBCO, T~ ~ 92 K). The SQUID ...

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