Browsing by Author "Paszkowicz, W."
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Item Diversity of Nanocrystal Shape andMorphology: A Brief Review(2017-05-29) Paszkowicz, W.; Fronc, K.; Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46; PL-02668 Warsaw, PolandItem Equation of state and pressure dependence of lattice parameter of gadolinium gallium garnet crystals(Видавництво національного університету „Львівська політехніка”, 2009) Durygin, A.; Paszkowicz, W.; Buczko, R.; Kaminska, A.; Saxena, S.; Suchocki, A.Item Growth and Characterization of Ca3Y2(BO3)4:Er,Yb Laser Crystal(2017-05-29) Gudzenko, L. V.; Kosmyna, M. B.; Shekhovtsov, A. N.; Gorbachenya, K. N.; Kisel, V. E.; Yasukevich, A. S.; Kuleshov, N. V.; Paszkowicz, W.; Sulich, A.; Domagała, J. Z.; Institute for Single Crystals NAS of Ukraine, 60 Nauki Ave., Kharkov, Ukraine; Center for Optical Materials and Technologies, Belarusian National Technical University; Nezavisimosti Ave., Minsk, Belarus; Institute of Physics, PAS, 32/46 Aleja Lotników, Warsaw, PolandItem Growth and characterization of pure and Yb-Doped Ca9Y(VO4)7 single crystals(Видавництво Львівської політехніки, 2012) Kosmyna, M. B.; Mateychenko, P. V.; Nazarenko, B. P.; Puzikov, V. M.; Shekhovtsov, A. N.; Paszkowicz, W.; Ermakova, O.; Romanowski, P.; Yasukevich, A. S.; Kuleshov, N. V.; Kisel, V. E.; Gulevich, A. E.; Demesh, M. P.Pure and Yb-doped Ca9Y(VO4)7 (CYVO) single crystals were grown using the Czochralski method. Their crystal structure was determined using powder diffraction and the defect structure was characterized using highresolution diffraction. The undoped crystal is found to be composed of a transparent and an opaque parts. In the latter, yttrium-rich inclusions were detected. Spectral-kinetic characteristics of Yb3 -doped crystals is reported.Item High Pressure Luminescence and Raman Investigation of Ca9Nd(VO4)7 Whitlockite-Like Crystals(2017-05-29) Wlodarczyk, D.; Kosyl, K.; Izdebska, K.; Paszkowicz, W.; Kosmyna, M.; Shekhovtsov, A.; Suchocki, A.; Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland; Institute of Physics, Kazimierz Wielki Univeristy, Weyssenhoffa 11, 85-072 Bydgoszcz, Poland; Institute for Single Crystals NAS of Ukraine, Nauki Ave. 60, 61001 Kharkov, UkraineItem Homogenous and heterogeneous magnetism in (Zn,Co)O(Видавництво Львівської політехніки, 2012) Sawicki, M.; Guziewicz, E.; Lukasiewicz, M. I.; Proselkov, O.; Kowalik, I. A.; Dluzewski, P.; Paszkowicz, W.; Jakiela, R.; Witkowski, B. S.; Wachnicki, L.; Stefanowicz, W.; Sztenkiel, D.; Godlewski, M.; Dietl, T.For more than a decade ZnO doped with Mn and Co has remained as one of the most prospected diluted magnetic semiconductor for spintronic applications with conflicting outcome concerning the genuineness of its room temperature ferromagnetism. In order to clarify this issue we investigate (Zn,Co)O layers grown by atomic layer deposition at low temperatures. We employ and relay on wide range of extensive material characterization, which in combination with superconducting quantum interference device magnetometry allow us decisively exemplify the growth temperature as the key factor discriminating between paramagnetic (obtained at 160 oC) and various forms of ferromagnetic responses, seen when the grows is carried out at 200 oC and above.Item Homogenous and heterogeneous magnetism in (Zn,Co)O(Видавництво Львівської політехніки, 2012) Sawicki, M.; Lukasiewicz, M. I.; Proselkov, O.; Kowalik, I. A.; Dluzewski, P.; Paszkowicz, W.; Jakiela, R.; Witkowski, B. S.; Wachnicki, L.; Stefanowicz, W.; Sztenkiel, D.; Godlewski, M.; Dietl, T.; Guziewicz, E.For more than a decade ZnO doped with Mn and Co has remained as one of the most prospected diluted magnetic semiconductor for spintronic applications with conflicting outcome concerning the genuineness of its room temperature ferromagnetism. In order to clarify this issue we investigate (Zn,Co)O layers grown by atomic layer deposition at low temperatures. We employ and relay on wide range of extensive material characterization, which in combination with superconducting quantum interference device magnetometry allow us decisively exemplify the growth temperature as the key factor discriminating between paramagnetic (obtained at 160 oC) and various forms of ferromagnetic responses, seen when the grows is carried out at 200 oC and above.Item Structure evolution of La2-xSrx(Cu,Ni)O4 assessed by the rietveld method(Видавництво національного університету „Львівська політехніка”, 2009) Minikayev, R.; Malinowski, A.; Bezusyy, V.; Paszkowicz, W.; Cieplak, M.Item Structure refinement for Pr doped ZrO2-Y2O3 nanocrystals(Видавництво національного університету „Львівська політехніка”, 2009) Werner-Malento, E.; Paszkowicz, W.; Fidelus, J. D.; Godlewski, M.; Yatsunenko, S.