Search Results - "Grabis, J."

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    Luminescence of AlN:Mn2+ materials: Properties and mechanisms by Ruska, R., Berzina, B., Cipa, J., Trinkler, L., Sarakovskis, A., Grabis, J., Steins, I.

    Published in Results in optics (01-02-2023)
    “…•A fast and long-lasting recombination luminescence processes in AlN:Mn2+ are observed.•Complex decay processes for 600 nm PersL in AlN:Mn2+ are observed.•The…”
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    Journal Article
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    Photoluminescence of Al2O3 nanopowders of different phases by Trinkler, L., Berzina, B., Jevsjutina, Z., Grabis, J., Steins, I., Baily, C.J.

    Published in Optical materials (01-07-2012)
    “…► Al2O3 nanopowders were produced by calcination in 800–1400°C temperature range. ► In all samples photoluminescence is determined by uncontrolled impurities…”
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    Journal Article
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    Preparation and investigation of Bi2WO6, Bi2MoO6 and ZnWO4 ceramics by Šalkus, T., Šatas, L., Kežionis, A., Kodols, M., Grabis, J., Vikhrenko, V., Gunes, V., Barre, M.

    Published in Solid state ionics (01-03-2015)
    “…Bi2WO6, Bi2MoO6, and ZnWO4 compounds have been synthesized by the microwave method. Their structures have been confirmed by XRD and DTA has been performed on…”
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    Journal Article
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    Neutron diffraction study of microstructural and magnetic effects in fine particle NiO powders by Balagurov, A. M., Bobrikov, I. A., Sumnikov, S. V., Yushankhai, V. Yu, Grabis, J., Kuzmin, A., Mironova-Ulmane, N., Sildos, I.

    “…Nickel oxide powders with grain sizes ranging from 100 to 1500 nm have been studied by high‐resolution neutron diffraction. We have found that the atomic…”
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    Pt supported TiO2-nanofibers and TiO2-nanopowder as catalysts for glycerol oxidation by Chornaja, S., Sile, E., Drunka, R., Grabis, J., Jankovica, D., Kunakovs, J., Dubencovs, K., Zhizhkuna, S., Serga, V.

    “…Novel TiO 2 nanofiber supported platinum catalysts Pt/NF–TiO 2 were synthesized and compared with TiO 2 nanopowder supported catalysts Pt/NP–TiO 2 in selective…”
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    Swift heavy ion induced modifications of luminescence and mechanical properties of polypropylene/ZnO nanocomposites by Maniks, J., Grigorjeva, L., Zabels, R., Millers, D., Bochkov, I., Zicans, J., Ivanova, T., Grabis, J.

    “…The effect of irradiation with 150MeV Kr ions at fluencies 1011 and 1012ions/cm2 on luminescence of PP/ZnO nanocomposites and PP matrix has been studied. In…”
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    Element-specific characterization of the interface magnetism in [Co{sub 2}MnGe/Au]{sub n} multilayers by x-ray resonant magnetic scattering by Grabis, J., Bergmann, A., Nefedov, A., Westerholt, K., Zabel, H.

    “…The magnetism of the ferromagnetic half-metallic Heusler compounds at the interface with other metals, insulators, and semiconductors is a critical issue when…”
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    The structural and optical properties of ZnO bulk and nanocrystals under high pressure by Duzynska, A., Hrubiak, R., Drozd, V., Teisseyre, H., Paszkowicz, W., Reszka, A., Kaminska, A., Saxena, S., Fidelus, J. D., Grabis, J., Monty, C. J., Suchocki, A.

    Published in High pressure research (01-09-2012)
    “…The elastic properties of high-quality ZnO crystals and nanopowder of grain size of about 65 nm are studied for both wurtzite (low pressure) and rock-salt high…”
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    Luminescence Properties of ZnO Nanocrystals and Ceramics by Grigorjeva, L., Millers, D., Grabis, J., Monty, C., Kalinko, A., Smits, K., Pankratov, V., Lojkowski, W.

    Published in IEEE transactions on nuclear science (01-06-2008)
    “…The luminescence excitation spectra, luminescence spectra and the nanosecond-scale decay kinetics were studied. The ZnO and ZnO:Al nanopowders were prepared by…”
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    Sintering of nanosized tungsten carbide produced by gas phase synthesis by Zalite, I., Grabis, J., Angerer, P.

    Published in Powder metallurgy and metal ceramics (01-11-2008)
    “…The preparation of ultrafine tungsten carbide bulk solids is of common interest in respect of the increased mechanical properties of such materials. Nanosized…”
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    Powder diffraction investigations of plasma sprayed zirconia by Bondars, B., Heidemane, G., Grabis, J., Laschke, K., Boysen, H., Schneider, J., Frey, F.

    Published in Journal of materials science (15-03-1995)
    “…The crystallographic and microstructural parameters of plasma sprayed pure zirconia powders were studied by x-ray and neutron powder diffraction. A significant…”
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    X-ray resonant magnetic scattering on noncollinearly coupled Fe/Cr superlattices by Nefedov, A., Grabis, J., Zabel, H.

    Published in Physica. B, Condensed matter (28-02-2005)
    “…We have studied in detail the structural and magnetic properties of an antiferromagnetically (AF) coupled Cr(25.6 Å)/Fe(15.2 Å) superlattice by soft X-ray…”
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    Journal Article Conference Proceeding
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    Soft X-ray resonant magnetic scattering studies on Co2MnGe Heusler films by NEFEDOV, A, GRABIS, J, BERGMANN, A, WESTERHOLT, K, ZABEL, H

    Published in Physica. B, Condensed matter (01-03-2004)
    “…We report on soft-X-ray resonant magnetic scattering studies performed at the Mn and Co L3,2 edges of Co2MnGe Heusler films. The samples were prepared by…”
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    Conference Proceeding Journal Article
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    Coating of plasma-processed nanosized powders by Grabis, J., Jankovica, Dz, Berzins, M., Chera, L., Zalite, I.

    “…The homogeneous Si 3N 4/SiC nanocomposites with sintering additives of alumina and yttria have been prepared by plasma technique and combining plasma technique…”
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    Journal Article Conference Proceeding
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    Luminescence of AlN:Eu ceramics: Properties and mechanisms by Berzina, B., Ruska, R., Cipa, J., Trinkler, L., Sarakovskis, A., Grabis, J., Steins, I.

    Published in Optical materials (01-05-2022)
    “…Luminescence processes of AlN:Eu ceramics, prepared by high temperature spark plasma sintering method, were studied basing on material spectral…”
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    Preparation of nanocrystalline YSZ powders by the plasma technique by GRABIS, J, KUZJUKEVICS, A, RASMANE, D, MOGENSEN, M, LINDEROTH, S

    Published in Journal of materials science (01-02-1998)
    “…A plasma synthesis method has been devised to produce nanosize YSZ powders with various yttria contents. The powders are synthesized by introducing a mixture…”
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