Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Marcela Kajňaková"'
Publikováno v:
Scopus-Elsevier
The exchange bias (EB) phenomenon has been found in Nd2/3Ca1/3MnO3 perovskite. The phenomenon manifests itself as a negative horizontal shift of magnetization hysteresis loops. The EB phenomenon is evident of an interface exchange coupling between co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2725213dbba49d211532d3e0e4ff9f4
https://doi.org/10.1063/1.4865563
https://doi.org/10.1063/1.4865563
Autor:
Alexander Feher, Farzaneh Mahmoudi, Michaela Pojarová, Michal Dušek, Behrouz Shaabani, Ali Akbar Khandar, Marcela Kajňaková
Publikováno v:
Journal of Coordination Chemistry. 66:748-762
[Mn(L)(μ1,1–N3)2]2 n [Mn(H2O)2(μ1,1–N3)2] n (1) and [Cd(HL)(μ1,1–N3)2] n (2) have been synthesized from HL (HL: pyridine-2-carbaldehyde semicarbazone) and azide ligands, characterized by FT-IR, UV–vis spectroscopy and X-ray crystallography
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4243f88546d50854de993e4dc465b7ff
https://doi.org/10.1080/00958972.2013.764413
https://doi.org/10.1080/00958972.2013.764413
Autor:
Alexandr Tovstolytkin, A. B. Beznosov, Marcela Kajňaková, Elena Fertman, Alexander Feher, Vladimir Desnenko, D. M. Polishchuk
Publikováno v:
Journal of Magnetism and Magnetic Materials. 324:4225-4230
We have studied by the electron-spin resonance (ESR) and static magnetic field techniques, the La 2/3 Ba 1/3 MnO 3 perovskite, which was previously shown to exhibit a martensitic phase transformation in the vicinity of T s ∼200 K [Physical Review B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb0ac582cdc5f58280f6f59b65fee2d
https://doi.org/10.1016/j.jmmm.2012.07.054
https://doi.org/10.1016/j.jmmm.2012.07.054
Autor:
Alexander Feher, A. B. Beznosov, Elena Fertman, Vladimir Desnenko, Sergiy Dolya, Marcela Kajňaková
Publikováno v:
Journal of Magnetism and Magnetic Materials. 324:3213-3217
A detailed study of the low-temperature magnetic state and the relaxation in the phase-separated colossal magnetoresistance Nd2/3Ca1/3MnO3 perovskite has been carried out. Clear experimental evidence of the cluster-glass magnetic behavior of this com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fb930a7c9d2b2e505b7afad1437e930
https://doi.org/10.1016/j.jmmm.2012.05.043
https://doi.org/10.1016/j.jmmm.2012.05.043
Autor:
Alexander Feher, Vladimir Desnenko, Marcela Kajňaková, A. B. Beznosov, Sergiy Dolya, Elena Fertman
Publikováno v:
Low Temperature Physics. 38:657-661
A giant exchange bias is detected in the colossal magnetoresistance of Nd2/3Ca1/3MnO3 perovskite at low temperatures and is evidence of intrinsic exchange coupling in this compound. These phenomena confirm our previous assumption that the low-tempera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6eb74083ecbb0822b8abeaff8e207da
https://doi.org/10.1063/1.4736614
https://doi.org/10.1063/1.4736614
Autor:
E. L. Fertman, A. B. Beznosov, Marcela Kajňaková, Sergiy Dolya, Alexander Feher, Vladimir Desnenko
Publikováno v:
Solid State Phenomena. 190:675-678
A study of the low temperature magnetic state of polycrystalline colossal magnetoresistance perovskite Nd2/3Ca1/3MnO3 has been carried out. The data obtained, such as strongly divergent ZFC and FC static magnetizations and frequency dependent ac susc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2964b1e69379293fb49919bfbe3d16c4
https://doi.org/10.4028/www.scientific.net/ssp.190.675
https://doi.org/10.4028/www.scientific.net/ssp.190.675
Autor:
A. Radváková, Marcela Kajňaková, D. Kamenskyi, Dirk Steinborn, V. O. Cheranovskii, Harry Schmidt, Vladimir A. Starodub, A.G. Anders, S. V. Vitushkina, Alexander Feher, Ivan Potočňák
Publikováno v:
Journal of Physics and Chemistry of Solids. 73:350-356
Mixed-ligand Cu(II) and Ni(II) complexes, [Cu(dmit)(bpy)] 2 ( I ), [Ni(dmit)(phen) 2 ] ( II ) and [Ni(dmit)(phen) 2 ]·CH 2 Cl 2 ( III ) (dmit=1.3-dithiole-2-thione-4.5-dithiolate, phen=1.10-phenantroline, bpy=2.2′-bipyridine) have been prepared by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc6098109e411fd34ca2453dbf5cd1ea
https://doi.org/10.1016/j.jpcs.2011.10.001
https://doi.org/10.1016/j.jpcs.2011.10.001
Publikováno v:
Journal of Magnetism and Magnetic Materials. 323:2380-2385
The low temperature specific heat and magnetic characteristics of Nd 2/3 Ca 1/3 MnO 3 perovskite are studied in a wide range of magnetic fields (up to 9 T). Temperature dependent specific heat data show a broadened Schottky-like anomaly below 20 K ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f9c7f419246c0958683bd97ac5b0054
https://doi.org/10.1016/j.jmmm.2011.05.001
https://doi.org/10.1016/j.jmmm.2011.05.001
Autor:
Ivan Potočňák, Erik Čižmár, L'ubor Dlháň, Roman Boča, Michal Dušek, Mykhaylo Ozerov, Sergei Zvyagin, Harry Schmidt, Marcela Kajňaková, Martin Vavra
Publikováno v:
Polyhedron. 30:269-278
Violet ( 1 ) and blue ( 2 ) polymorphous modifications of [Cu( men ) 2 Pt(CN) 4 ] n ( men = N -methyl-1,2-diaminoethane) have been prepared and investigated by IR and UV–vis spectroscopy, thermal analysis, measurement of magnetic data and X-ray str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4df2461533459478bc7228522c5bced3
https://doi.org/10.1016/j.poly.2010.10.009
https://doi.org/10.1016/j.poly.2010.10.009
Autor:
Larry R. Falvello, Juraj Kuchár, Juraj Černák, Ivan Potočňák, Martin Vavra, Marcela Kajňaková, Monika Stolárová, Milagros Tomás
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
From the systems Cu(II)–cyclam–[M(CN)4]2− (cyclam = 1,4,8,11-tetraazacyclotetradecane; M = Ni, Pd, Pt), three cyanidocomplexes Cu(cyclam)M(CN)4 [M = Ni (1), Pd (2), Pt (3)] were isolated and characterized by chemical analysis, IR and UV–VIS s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd045afd7a7c3d3069d48ba6b4687064
https://doi.org/10.1007/s11243-010-9387-5
https://doi.org/10.1007/s11243-010-9387-5