Articole ştiinţifice: Recent submissions

  • Thickness Dependences of Kinetic Properties of Quantum Wires of Pure and Doped Bismuth 
    BODIUL, P. P.; BURCHAKOV, A. N.; GITSU, D. V .; NIKOLAEVA, A. A. (Springer Nature Switzerland, 1999)
    Last time a great number of researches is devoted to the investigation of quantum and classical size effects [1]. The problem is stimulated by the possibility to detect new effects having no analogues in bulk crystal and ...
  • Thermoelectric Properties of Films and Monocrystalline Whiskers of Tellurium 
    BODIUL, P.; BONDARCHUK, N.; HUBER, T.; KONOPKO, L.; NIKOLAEVA, A.; BOTNARI, O. (IEEE, 2006)
    We report a study of the thermoelectric properties of Te films obtained by vacuum-condensation method on glass, polyamide, mica at various temperatures of condensation. The crystallographic structure of the films is ...
  • Thermoelectric properties of BI1-XSBX (0≤ Х ≤ 0.12) wires depending on diameter, composition and temperature 
    BODIUL, P. P.; MOLOSHNIK, E. F.; POPOV, I. A.; BOTNAR, О. V.; ISTRATE, E. K. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 2010)
    Behaviour of kinetic coefficients versus temperature (4.2 - 300 K), composition and diameter (d) was studied on the samples of thin single-crystal bismuth and Bi1-xSbx wires obtained by the Ulitovsky method. Antimony content ...
  • Thermo- and magneto-thermo-E.M.F. in Bi-Sn alloys 
    BODIUL, P. P.; FEDORKO, A. S.; GITSU, D. V. (John Wiley & Sons, Inc., 1970)
    Sn in Bi behaves as an acceptor and influences the anisotropy of kinetic effects sensitive to the band structure near Fermi-level, such as the thermo- and magneto-thermo-e.m.f. described in present paper.
  • The thermopower in bismuth whiskers 
    BODÍUL, P. P.; GITSU, D. V.; DOLMA, V. A.; MIGLEI, M. F.; ZEGRYA, G. G. (John Wiley & Sons, Inc., 1979)
    The temperature dependence of the thermopower in Bi whiskers of different thickness (0.3 to 6 μm) is measured within the temperature range 77 to 300 K. At low temperatures the thermopower in the thinnest whiskers changes ...
  • The structure phase transition in quantum wires of bismuth under elastic tension 
    BODIUL, P. P.; GARABAZHIU, V. F.; CONDREA, E. P.; NIKOLAEVA, A. A. (Springer Nature Switzerland, 1996)
    It was established that at 4.2 K for thin (d<1μm)Bi wires there existed a complicated λ-form dependence of the resistanceR¯ on the strong elastic deformation ξ. The drastic fall in the oscillation amplitude of the ...
  • The Structure of Isoenergetic Surfaces of Bi at the L-Maximum 
    BODIUL, P. P.; GITSU, D. V.; FEDORKO, A. S. (John Wiley & Sons, Inc., 1969)
    Magneto-thermoelectric properties of the semimetal Bi provide information not only about the scattering of carriers, but also about the number and relative localization of band extrema in k-space. Conclusion about the ...
  • 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 impact of dimensions, magnetic field, elastic deformation on the thermoelectric figure of merit of the topological insulator wires based on semiconductor Bi1-xSbx wires 
    NIKOLAEVA, А.; KONOPKO, L.; HUBER, Т.; BODIUL, P.; POPOV, I.; MOLOSHNIK, Е.; GERGISHAN, I. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 2016)
    This paper presents the experimental results of a study of thermoelectric properties of the topological insulator (TI) wires based on semiconductor Bi1-xSbx wires. Glass-coated semiconductor Bi-17 at % Sb wires prepared ...
  • Temperature and magnetic dependence of the resistance and thermopower in the topological insulator Bi1−xSbx nanowires 
    NIKOLAEVA, Albina; KONOPKO, Leonid; HUBER, Tito; POPOV, Ivan; BODIUL, Pavel; MOLOSHNIK, Evghenii (John Wiley & Sons, Inc., 2014)
    Such alloys are classified as topological insulators. The individual Bi–17 at Sb wires in a glass capillary with diameters ranging from 100 to 1000 nm were prepared by high-frequency liquid-phase casting in an argon ...
  • Structural instability of an impurity subsystem induced by monocrystal deformation 
    BODIUL, P. P.; GARABAZHIU, V. F.; KONDRYA, E. P.; NIKOLAYEVA, A. A. (Elsevier, 1992)
    Oscillating resistivity dependence of tensile extension was observed in thin (d < 20 Ојm) cylindrical single crystals of Bi-0.03 at% Sn alloy at 4.2 K. The resistivity dependence was influenced by sample diameter, temperature ...
  • Specific Role of Impurities in Semimetals 
    BOTOSHAN, N. I.; BODIUL, P. P.; GITSU, D. V. (Springer Nature Switzerland, 1997)
    We have shown that the Fermi energy dependence on temperature in semimetals keeps its well-known form, similar to that of semiconductors, down to T = 0. In the nearest vicinity of T = 0 this dependence is significantly ...
  • Size-Quantization Semimetal–Semiconductor Transitionin Bi0.98Sb0.02 Nanowires: Thermoelectric Properties 
    NIKOLAEVA, A. A.; KONOPKO, L. A.; HUBER, T. E.; BODIUL, P. P.; POPOV, I. A.; MOLOSHNIK, E. F. (Springer Nature Switzerland, 2012)
    We fabricated Bi0.98Sb0.02 wires with diameters in the range between 200 nm and 2 μm and studied their electronic transport and thermoelectric properties. Rotational diagrams and strong Shubnikov–de Haas oscillations show ...
  • Semimetal-Semiconductor Transitions in Semimetal Bismuth-Antimony Nanowires Induced by Size Quantization, Strain, and Magnetic Field 
    NIKOLAEVA, Albina A.; KONOPKO, Leonid A.; HUBER, Tito E.; BODIUL, Pavel P.; POPOV, Ivan A.; MOLOSHNIK, Eugen F. (Springer Nature Switzerland, 2011)
    In this work, we study glass-coated single-crystal Bi98Sb02 wires obtained by liquid phase casting. Semimetal Bi98Sb02 nanowires exhibited a “semiconductor” behavior of the temperature dependence R(T) for wire diameters ...
  • Prospects of nanostructures Bi1−xSbx for thermoelectricity 
    NIKOLAEVA, Albina A.; KONOPKO, Leonid A.; HUBER, Tito E.; BODIUL, Pavel P.; POPOV, Ivan A. (Elsevier, 2012)
    It has been predicted that surface states of topological insulators have large a thermopower and also ultrahigh mobilities. The authors report results of a magneto-thermoelectric investigation of single crystal Bi1−xSbx ...
  • Phonon Drag of L-Holes in Ultraquantum Magnetic Fields in Bi0.88Sb0.12 Alloy 
    BOIKO, M. P.; REDKO, N. A.; BODIUL, P. P.; RODIONOV, N. A. (John Wiley & Sons, Inc., 1985)
    The phonon drag thermopower was discovered and investigated in a number semimetals of Bi, Sb and As type /1 to 3/. In the semivonductor alloys Bi 1-xSbx which are very interested from the practical point of view this ...
  • Peculiarities of transport properties of thin bismuth wires doped with tin and possibility to increase thermoelectric efficiency of p-branch on their basis 
    BODIUL, P.; GITSU, D.; HUBER, T.; KONOPKO, L.; NIKOLAEVA, A. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 2005)
    The most typical peculiarities of galvano- and thermomagnetic properties of thin single crystal bismuth wires doped with tin (up to 0.07 at.%) obtained by us the last years are analyzed with the purpose to reveal the ratio ...
  • Peculiarities of impurity states in bismuth and doping anomaly of some transport phenomena I. Binary alloys 
    BODIUL, P.; GITSU, D.; IVANOV, G.; NIKOLAEVA, A.; PARA, G. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 1999)
    Generalizing data of the most typical peculiarities of influence of the impurities (isovalent (Sb, As), donor (Te, Se) and acceptor (Pb, Sn) ones) on the charge transport phenomena in bismuth are given. Proceedingfrom ...
  • Peculiarities of diffusion thermopower with impurity electron topological transition in heavily doped bismuth wires 
    NIKOLAEVA, A. A.; KONOPKO, L. A.; BODIUL, P. P.; TSURKAN, A. K. (Институт термоэлектричества Национальной академии наук и Министерства образования и науки Украины, 2014)
    This paper presents a series of investigations of differential thermopower and resistance in the temperature range of 4.2 – 300 K of samples shaped as glass-coated single-crystal Bi wires heavily doped with Sn acceptor ...
  • Galvano-thermomagnetic properties of Bi/sub 1-x/Sb/sub x/ nanowires at semiconductor-semimetal transition induced by elastic elongation 
    NIKOLAEVA, A.; BODIUL, P.; KONOPKO, L.; PARA, G. (IEEE, 2002)
    In the work thin single crystal (0.3 < d < 5 /spl mu/m) wires Bi/sub 1-x/Sb/sub x/ obtained by the liquid phase casting in a glass coating were investigated under elastic deformations up to 2-3% relative elongation in the ...

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