Zobrazeno 1 - 10
of 557
pro vyhledávání: '"Hilczer, B"'
Multiferroic bismuth ferrite (BiFeO3) nanopowders have been obtained in room temperature by mechanical synthesis. Depending on the post-synthesis processing the nanopowders have exhibited differences in the mean sizes, presence of amorphous layer and
Externí odkaz:
http://arxiv.org/abs/1407.4657
Autor:
Andrzejewski, B., Chybczynska, K., Hilczer, B., Blaszyk, M., Lucinski, T., Matczak, M., Kepinski, L.
This study reports on the synthesis of ball-like bismuth ferrite BiFeO3 nanoflowers by means of microwave assisted hydrothermal process and also on their composition and mechanism of growth. It turns out that the petals of the nanoflowers are compose
Externí odkaz:
http://arxiv.org/abs/1402.1336
Multiferroic (Bi1-xLaxFeO3)0.5(PbTiO3)0.5 ceramics was prepared from mechanical synthesized nanopowders. The XRD studies revealed the tetragonal structure and the tetragonality decreased with La content. Dielectric response of the compounds was found
Externí odkaz:
http://arxiv.org/abs/1312.3886
Autor:
Andrzejewski, B., Bednarski, W., Kazmierczak, M., Pogorzelec-Glaser, K., Hilczer, B., Jurga, S., Matczak, M., Leska, B., Pankiewicz, R., Kepinski, L.
Publikováno v:
Composites Part B, 64 (2014) 147
We report on the effect of organic acid capping on the behavior of magnetite nanoparticles. The nanoparticles of magnetite were obtained using microwave activated process, and the magnetic properties as well as the electron magnetic resonance behavio
Externí odkaz:
http://arxiv.org/abs/1311.5379
Autor:
Chybczynska, K., Lawniczak, P., Hilczer, B., Leska, B., Pankiewicz, R., Pietraszko, A., Kepinski, L., Kaluski, T., Cieluch, P., Matelski, F., Andrzejewski, B.
Publikováno v:
Journal of Materials Science (2014) 49:2596-2604
The method of microwave assisted hydrothermal synthesis of bismuth ferrite multiferroic nanoflowers, their mechanism of growth, magnetic as well as dielectric properties are presented. The nanoflowers are composed of numerous petals formed by BiFeO3
Externí odkaz:
http://arxiv.org/abs/1212.2538
Autor:
Andrzejewski, B., Chybczynska, K., Pogorzelec-Glaser, K., Hilczer, B., Tolinski, T., Leska, B., Pankiewicz, R., Cieluch, P.
Publikováno v:
Ferroelectrics, 448:1, 58-70, 2013
The process of magnetic relaxation was studied in bismuth ferrite BiFeO3 multiferroic micro-cubes obtained by means of microwave assisted Pechini process. Two different mechanisms of relaxation were found. The first one is a rapid magnetic relaxation
Externí odkaz:
http://arxiv.org/abs/1210.0765
Autor:
Andrzejewski, B., Chybczynska, K., Pogorzelec-Glaser, K., Hilczer, B., Leska, B., Pankiewicz, R., Cieluch, P.
Publikováno v:
Phase Transitions: A Multinational Journal 86 (2013) 748-757
In this report we present results of magnetization measurements and investigation of aging and memory effect in bismuth ferrite multiferroic micro-cubes obtained by means of simple microwave synthesis procedure. It is found that difference between FC
Externí odkaz:
http://arxiv.org/abs/1205.3653
Publikováno v:
Journal of Magnetism and Magnetic Materials, Volume 342, September 2013, Pages 17-26
The ZFC and FC magnetization dependence on temperature was measured for BiFeO3 ceramics at the applied magnetic field up to H=10T in 2K-1000K range. The antiferromagnetic order was detected from the hysteresis loops below the Neel temperature TN=646K
Externí odkaz:
http://arxiv.org/abs/1203.6886
Publikováno v:
Phys. Rev. B 84, 064303 (2011)
We performed density functional studies of electronic properties and mechanisms of hydrogen transport in Rb3H(SeO4)2 crystal which represents technologically promising class M3H(XO4)2 of proton conductors (M=Rb,Cs, NH4; X=S,Se). The electronic struct
Externí odkaz:
http://arxiv.org/abs/1002.3745
We calculated the influence of surface tension on the barriers of oxygen ionic conductivity in nanograin ceramics. Activation energy of oxygen ions diffusion via oxygen vacancies which were considered as the dilatational centers was calculated. This
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507140