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Wyszukujesz frazę "Zukowski, W" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Allocation and Properties of Iron States in Cd$\text{}_{1-x}$Fe$\text{}_{x}$Te in Forbidden Gap Energy Range
    Autorzy:
    Hołda, A.
    Rodzik, A.
    Melnikov, A.
    Żukowski, P. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1872765.pdf
    Data publikacji:
    1995-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.20.Ci
    78.20.Jq
    78.60.Hk
    Opis:
    The use of different experimental methods (reflectivity, absorption, photoconductivity and cathodoluminescence) allowed us to confirm the existence of the deep donor-like state of iron and present allocation and properties of the iron states in Cd$\text{}_{1-y}$Fe$\text{}_{x}$Te (0 ≤ x ≤ 0.05) at 300 K and 77 K in the forbidden gap energy range. It was concluded that the increase in width of the forbidden gap with the change of temperature from 300 K to 77 K leads mainly to the rise of the energy distance between the donor-like iron state $\text{}^{5}$E and the bottom of the conduction band.
    Źródło:
    Acta Physica Polonica A; 1995, 87, 2; 357-360
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cathodoluminescence Study of Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te and Zn$\text{}_{1-x}$Mn$\text{}_{x}$Te
    Autorzy:
    Hołda, A.
    Rodzik, A.
    Melnikov, A. A.
    Żukowski, P. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1933757.pdf
    Data publikacji:
    1995-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.60.Hk
    78.55.Et
    Opis:
    The cathodoluminescence spectra for Cd$\text{}_{1-x}$Μn$\text{}_{x}$Te (0 < x ≤ 0.7) and Zn$\text{}_{1-x}$Mn$\text{}_{x}$Te (0 < x ≤ 0.6) at room and liquid nitrogen temperature have been presented and discussed. Especially, the influence of increasing temperature and Mn content on cathodoluminescence spectra. The cathodoluminescence emission in Ζn$\text{}_{1-x}$Mn$\text{}_{x}$Te (Cd$\text{}_{1-x}$Μn$\text{}_{x}$Te) centered at ≈ 1.95 eV (2.0 eV) and ≈ 2.2 eV (2.5 eV) are ascribed to Stokes-shifted $\text{}^{4}$Τ$\text{}_{1}$($\text{}^{4}$G) → $\text{}^{6}$A$\text{}_{1}$($\text{}^{6}$S) and $\text{}^{4}$Τ$\text{}_{2}$($\text{}^{4}$G) → $\text{}^{6}$A$\text{}_{1}$($\text{}^{6}$S) internal transitions of Mn$\text{}^{+2}$ within the 3d$\text{}^{5}$ state, respectively.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 4; 739-742
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fabrication and Research of Superhard (Zr-Ti-Cr-Nb)N Coatings
    Autorzy:
    Bondar, O.
    Postolnyi, B.
    Kravchenko, Yu.
    Shypylenko, A.
    Sobol, O.
    Beresnev, V.
    Kuzmenko, A.
    Zukowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402215.pdf
    Data publikacji:
    2015-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    Opis:
    This work presents the results of (Zr-Ti-Cr-Nb)N superhard coatings research. The samples were fabricated by the vacuum-arc deposition method (Arc-PVD). Structure, composition and properties of these coatings were studied. The study of coatings was carried out using scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. Hardness measurements and adhesion tests were performed. The coatings thickness was up to 6.2 μ m, nanocrystallites sizes ranged from 4 to 7.3 nm. Values of hardness and cohesive strength were H=43.7 GPa and $L_{C}$=62.06 N, respectively. The optimal conditions for coating deposition were found.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 5; 867-870
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of Nanoscale TiN/MoN Multilayered Systems, Fabricated Using Arc Evaporation
    Autorzy:
    Pogrebnjak, A.
    Bondar, O.
    Abadias, G.
    Eyidi, D.
    Beresnev, V.
    Sobol, O.
    Postolnyi, B.
    Zukowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1402193.pdf
    Data publikacji:
    2015-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-g
    Opis:
    Using the vacuum-arc evaporation method we fabricated periodic multilayered TiN/MoN structures with different bilayer periods λ ranging from 8 to 100 nm. We found that molybdenum nitride and titanium nitride layers grown on steel show local partial epitaxy and columnar growth across interfaces. A molybdenum-titanium carbide interlayer was evidenced between the substrate and the multilayer. Molybdenum nitride and titanium nitride layers contain small (5÷30 nm) grains and are well crystallized with (100) preferred orientation. They were identified as stoichiometric fcc TiN and cubic γ-M₂N. Non-cubic molybdenum nitride phases were also detected. The hardness of the obtained structures achieved great values and maximal hardness was 31÷41.8 GPa for the multilayered structure with a 8 nm period. Hardness of the obtained coatings is 25÷45% higher in comparison with the initial single-layer nitride coatings, plasticity index of multilayered structure is 0.075.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 5; 836-840
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Light Emitting Single-Crystalline Silicon Wafers Implanted with V and III Group Ions
    Autorzy:
    Komarov, F.
    Vlasukova, L.
    Milchanin, O.
    Greben, M.
    Parkhomenko, I.
    Mudryi, A.
    Wendler, E.
    Zukowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1198877.pdf
    Data publikacji:
    2014-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.80.-x
    61.72.Ff
    63.20.-e
    78.66.-w
    Opis:
    Compound semiconductor nanocrystals (InAs, InSb, GaSb) were successfully synthesized in single crystalline Si by high fluence ion implantation at 500C followed by high-temperature rapid thermal annealing or conventional furnace annealing at 900-1100°C. Rutherford backscattering spectrometry, transmission electron microscopy/transmission electron diffraction, Raman scattering, and photoluminescence were employed to characterize the implanted layers. Two different types of the broad band emission extending over 0.75-1.1 eV were observed in photoluminescence spectra of annealed samples. One of the bands disappears in photoluminescence spectra of samples annealed at 1100C unlike the other one.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 6; 1288-1291
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multilayered Nano-Microcomposite Ti-Al-N/TiN/$Al_2O_3$ Coatings. Their Structure and Properties
    Autorzy:
    Pogrebnjak, A.
    Shpak, A.
    Kirik, G.
    Erdybaeva, N.
    Il'yashenko, M.
    Dem'yanenko, A.
    Kunitskii, Yu.
    Kaverina, A.
    Baidak, V.
    Makhmudov, N.
    Zukowski, P.
    Komarov, F.
    Beresnev, V.
    Ruzimov, Sh.
    Shypylenko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1503960.pdf
    Data publikacji:
    2011-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-q
    Opis:
    This paper presents the first results on formation and study of structure and properties of micro- and nanocomposite combined coatings. By means of modeling the deposition processes (deposition conditions, current density-discharge, plasma composition and density, voltage) we formed the three-layer nanocomposite coatings of Ti-Al-N/Ti-N/$Al_2O_3$. The coating composition, structure and properties were studied using physical and nuclear-physical methods. The Rutherford proton and helium ion backscattering, scanning electron microscopy with microanalysis, grazing incidence X-ray diffraction, as well as nanohardness tests (hardness) were used. Measurements of wear resistance and corrosion resistance in NaCl, HCl and $H_2SO_4$ solutions were also performed. For testing mechanical properties such characteristics of layered structures as hardness H, elastic modulus E: $H^3//E^2$ etc. were measured. It is demonstrated that the formed three-layer nanocomposite coatings have hardness of 32 to 36 GPa and elastic modulus of 328 ± 18 to 364 ± 14 GPa. Its wear resistance (cylinder-surface friction) increased by factor of 17 to 25 in comparison with the substrate (stainless steel). The layers thickness was in the range of 56-120 μm.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 1; 94-99
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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