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Wyszukujesz frazę "Talik, E." wg kryterium: Autor

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    Wyświetlanie 1-10 z 10
    Tytuł:
    Czochralski Method for Crystal Growth οf Reactive Intermetallics
    Autorzy:
    Talik, E.
    Oboz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399478.pdf
    Data publikacji:
    2013-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    71.20.Lp
    81.10.Fq
    61.66.Dk
    Opis:
    Czochralski method of crystallization allows obtaining single crystals of many intermetallic compounds. New series $Gd_7Ni_xPd_{3-x}$ (x=2, 3) intermetallics was grown by the modified Czochralski method using a levitated melt in protective argon atmosphere. Preliminary studies of magnetic properties have shown that all crystals of the series order ferromagnetically. It was found that $Gd_7Ni_2Pd$ shows magnetic transition to the ferromagnetic state at 225 K while $Gd_7Ni_3$ orders at 145 K.
    Źródło:
    Acta Physica Polonica A; 2013, 124, 2; 340-343
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Yttrium Substitution οn the Electronic Structure and Magnetic Moment οf $Gd_{7-x}Y_{x}Pd_{3}$ (x = 0, 1, 2, 3, 4)
    Autorzy:
    Klimczak, M.
    Talik, E.
    Tran, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/1810460.pdf
    Data publikacji:
    2009-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    71.20.Lp
    71.28.+d
    75.40.Cx
    75.60.Ej
    Opis:
    The electronic structure and magnetic properties of $Gd_{7-x}Y_{x}Pd_{3}$ (x = 0, 1, 2, 4) single crystals were examined. These compounds crystallized in the same crystal structure type $(Th_{7}Fe_{3})$ with the same c/a ratio of 0.63. A strongly anisotropic behavior of the magnetic and transport properties was found. Magnetic frustration and spin fluctuations on the palladium atoms are responsible for the complex magnetic properties of this ternary compound. As a part of current research we presented further characteristic of the $Gd_{7-x}Y_{x}Pd_{3}$ (x = 0, 1, 2, 4) single crystal.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 1; 200-202
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Surface Properties of Particles Emitted from Selected Coal-Fired Heating Plants and Electric Power Stations in Poland : Preliminary Results
    Autorzy:
    Pastuszka, J.S.
    Konieczyński, J.
    Talik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/205429.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    particulates emission
    coal-fired power
    heating station
    surface chemical composition
    X-ray
    photoelectron spectroscopy
    XPS
    specific absorption
    Opis:
    The surface properties of particles emitted from six selected coal-fired power and heating plants in Poland have been studied in this work for the first time. Samples were collected beyond the control systems. Surface composition of the size-distributed particles was obtained by photoelectron spectroscopy (XPS). The reflection of the smallest, submicron particles was also measured to calculate their specific/mass absorption. The surface layer of the emitted particles was clearly dominated by oxygen, followed by silicon and carbon. The sum of the relative concentration of these elements was between 85.1% and 91.1% for coarse particles and 71.8–93.4% for fine/submicron particles. Aluminum was typically the fourth or fifth, or at least the sixth most common element. The mass absorption of the submicron particles emitted from the studied plants ranged from 0.02 m2g-1 to 0.03 m2g-1. Only specific absorption obtained for the “Nowy Wirek” heating plant was significantly higher than in other studied plants probably because the obsolete fire grate is used in this heating plant. The obtained results suggest that the power/heating-plant-emitted fine particles contain less carbonaceous material/elemental carbon on their surfaces than those that are typical in urban air.
    Źródło:
    Archives of Environmental Protection; 2014, 40, 3; 13-27
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies of the Bacterial Surfaces by XPS and SEM Methods
    Autorzy:
    Płoszaj-Pyrek, J.
    Talik, E.
    Piotrowska-Seget, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/1197681.pdf
    Data publikacji:
    2014-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    87.64.-t
    71.20.Rv
    61.66.Hq
    31.50.Gh
    Opis:
    This work presents the results of studies on bacteria Bacillus subtilis which was grown at different temperatures. The experiments were carried out using X-ray photoelectron spectroscopy and scanning electron microscope equipped with "cryo-chamber", which gives the possibility of testing biological samples in a frozen state. These methods enabled receiving images of surface topography of the bacteria and demarcated their chemical composition. After deconvolution of the lines C 1s and O 1s information concerning the intensity of the various functional groups in the bindings presented in the cell walls surface of tested strain and reallocation in relation to the temperature of incubation was obtained. These changes are visible in the form of an additional peak in both the C 1s and O 1s in bacteria cultured in suboptimum temperature.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 4; 929-931
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mössbauer Investigations and Photoemission Studies of the Fe 3s Spin Splitting in Some Fe-Ni Alloys
    Autorzy:
    Kądziołka-Gaweł, M.
    Zarek, W.
    Talik, E.
    Popiel, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811577.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    82.80.Ej
    82.80.Pv
    Opis:
    The magnetic properties, crystal and electronic structure for $Fe_{1-x}Ni_x$ (x=0.30, 0.325, 0.375) alloys and austenitic steel were studied using magnetostatic, Mössbauer effect methods, X-ray diffraction and X-ray photoelectron spectroscopy. The compositions of the investigated Fe-Ni alloys were chosen like that to exist on left, right and in inside of invar range. Two different magnetic moments (low and high) of Fe atom were observed. Measurement results do not show antiferromagnetic order in Fe-Ni alloys.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6; 1493-1500
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Size Effect of Hard Magnetic Properties of Fe-Nb-B-Tb Milled Alloys
    Autorzy:
    Granek, K.
    Ziółkowski, G.
    Chrobak, A.
    Klimontko, J.
    Talik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030390.pdf
    Data publikacji:
    2018-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.Bc
    75.50.Tt
    75.60.d
    76.80.+y
    Opis:
    The paper refers to magnetic and structural properties of powders made of Fe-Nb-B-Tb ultra-high coercive alloy. The initial alloy was milled in a low energy mill for 1 h and 14 h. With increasing milling time we observed gradual deterioration of hard magnetic properties i.e. the coercive field decreases from 5.51 T to 0.14 T for the bulk alloy and 14 h milled powder, respectively. However, for the 1 h milling time the micrometric powder reveals quite high coercivity of 2.77 T which is promising for possible applications in magnetic composites.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 3; 645-647
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetic Moments Arrangement in Fe Layers Deposited from Acetone Based Electrolyte
    Autorzy:
    Olszewski, W.
    Szymański, K.
    Satuła, D.
    Biernacka, M.
    Talik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811609.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.15.Pq
    33.45.+x
    76.80.+y
    75.30.Gw
    75.30.Cr
    Opis:
    The acetone based electrolyte was used for electrodeposition of iron layers on the copper substrate. Two types of surfaces of the deposited layer can be obtained: shiny or black. Magnetic properties of the near-surface regions were studied by the conversion electron Mössbauer spectroscopy. The conversion electron Mössbauer spectra revealed apparent dependence of magnetic moments' arrangement on the deposition time. Those results were compared with the magnetization measurements. Composition of black coating was examined by the X-ray photoelectron spectroscopy measurements.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6; 1631-1640
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electronic Structure of $Y_{3}Al_{5}O_{12}:V$ Single Crystals, Comparison with Sintered Ceramics
    Autorzy:
    Kruczek, M.
    Talik, E.
    Kusz, J.
    Sakowska, H.
    Świrkowicz, M.
    Węglarz, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1810470.pdf
    Data publikacji:
    2009-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    33.60.+q
    33.70.Jg
    79.60.-i
    79.60.Bm
    Opis:
    $Y_{3}Al_{5}O_{12}$ (YAG) single crystals doped with vanadium ions $(V^{3+})$ were obtained by the Czochralski method. The X-ray photoelectron spectra of YAG:V annealed in reducing atmospheres: $H_{2}$, vacuum and $H_{2}$ + vacuum are presented and compared with the spectra of the YAG ceramics. The X-ray photoelectron spectra showed that the vanadium dopant concentration in YAG:V crystals is lower than a nominal one. For the "as grown" YAG:2.8at.%V crystal vanadium exists in the mixed valence state. The increase in lattice parameters for the samples annealed in hydrogen was found.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 1; 209-212
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Carbon on Spin Reorientation Processes in $Er_{2-x}R_xFe_{14}C$ (R~=~Gd, Pr) - Mössbauer and Magnetometric Studies
    Autorzy:
    Pędziwiatr, A.
    Krawiec, K.
    Bogacz, B.
    Kapusta, Cz.
    Przewoźnik, J.
    Kaczorowski, D.
    Talik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1506592.pdf
    Data publikacji:
    2011-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    76.80.+y
    75.25.-j
    75.50.-y
    75.50.Bb
    Opis:
    The $Er_{2-x}R_{x}Fe_{14}C$ (R=Gd, Pr) polycrystalline compounds have been synthesized and investigated with $\text{}^{57}Fe$ Mössbauer spectroscopy and magnetic measurements. The spin reorientation phenomena were studied extensively by narrow step temperature scanning in the neighborhood of the spin reorientation temperature. Obtained Mössbauer spectra were analyzed using a procedure of simultaneous fitting and the transmission integral approach. Consistent description of Mössbauer spectra were obtained, temperature and composition dependencies of hyperfine interaction parameters and subspectra contributions were derived from fits and the transition temperatures were determined for all the compounds studied. Initial magnetization versus temperature measurements (in zero and non-zero external field) for $Er_{2-x}Gd_{x}Fe_{14}C$ compounds allowed to establish the temperature regions of reorientation, change of magnetization value during the transition process. The results obtained with different methods were analyzed and the spin arrangement diagrams were constructed. Data obtained for $Er_{2-x}Gd_{x}Fe_{14}C$ were compared with those for $Er_{2-x}Gd_{x}Fe_{14}B$ series.
    Źródło:
    Acta Physica Polonica A; 2011, 119, 1; 48-51
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the Crystal and Magnetic Behavior οf $ScFe_{4}Al_{8}$ Single Crystal
    Autorzy:
    Rećko, K.
    Dobrzyński, L.
    Lemée-Cailleau, M.
    Waliszewski, J.
    Talik, E.
    Suski, W.
    Courtois, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1810469.pdf
    Data publikacji:
    2009-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.05.fm
    61.05.cp
    Opis:
    Nuclear and magnetic properties of the $ScFe_{4}Al_{8}$ single crystal were found to exhibit unparalleled complexity of nuclear and magnetic structures. Our previous neutron measurements revealed presence of two modulation vectors, both along [ε, ε, 0], however with different critical temperatures. Recent experiments forced us to revise our knowledge of the structural ordering in the sample. So far, the crystal structure of this alloy, being of $ThMn_{12}$-type, has never been questioned.
    Źródło:
    Acta Physica Polonica A; 2009, 115, 1; 206-208
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

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