Zobrazeno 1 - 10
of 709
pro vyhledávání: '"Dobrowolski W"'
Autor:
Kilanski L., Dobrowolski W., Szymczak R., Dynowska E., Wójcik M., Romčević M., Romčević N., Fedorchenko I.V., Marenkin S.F.
Publikováno v:
Science of Sintering, Vol 46, Iss 3, Pp 271-281 (2014)
Currently, complex ferromagnetic semiconductor systems are of significant interest due to their potential applicability in spintronics. A key feature in order to use semiconductor materials in spintronics is the presence of room temperature ferrom
Externí odkaz:
https://doaj.org/article/7186b31b9ac84a58b9e8c2366b4470b1
Autor:
Kuryliszyn-Kudelska I., Dobrowolski W., Arciszewska M., Romčević N., Romčević M., Hadžić B., Sibera D., Narkiewicz U., Lojkowski W.
Publikováno v:
Science of Sintering, Vol 45, Iss 1, Pp 31-48 (2013)
Currently, wide-gap ZnO nanoparticles bear important potential application in electro-optical devices, transparent ultraviolet protection films, and spintronic devices. We have studied the magnetic properties of nanocrystals of ZnO(Fe, Co, Mn) prepar
Externí odkaz:
https://doaj.org/article/60c763180cb44914bf7bbccbe7ffdeb6
Autor:
Dobrowolski W., Arciszewska M., Brodowska B., Domukhovski V., Dugaev V.K., Grzęda A., Kuryliszyn-Kudelska I., Wójcik M., Slynko E.I.
Publikováno v:
Science of Sintering, Vol 38, Iss 2, Pp 109-116 (2006)
In some IV-VI semimagnetic semiconductors, the RKKY interaction can dominate over the standard d-d superexchange and become the driving mechanism for ion-ion coupling. In effect, for low hole concentrations the Mn ion system is in a paramagnetic phas
Externí odkaz:
https://doaj.org/article/9a08429d696749d3ac3255f856044a3b
Akademický článek
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Autor:
Kilanski, L., Fedorchenko, I. V., Górska, M., Ślawska-Waniewska, A., Nedelko, N., Podgórni, A., Avdonin, A., Lahderanta, E., Dobrowolski, W., Aronov, A. N., Marenkin, S. F.
We present studies of structural, magnetic and electrical properties of Zn/1-x-y/Cd/x/Mn/y/GeAs/2/ nanocomposite ferromagnetic semiconductor samples with changeable chemical composition. The presence of MnAs clusters induces in the studied alloy room
Externí odkaz:
http://arxiv.org/abs/1505.01357
Akademický článek
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Autor:
Podgórni, A., Kilanski, L., Dobrowolski, W., Górska, M., Domukhovski, V., Brodowska, B., Reszka, A., Kowalski, B. J., Slynko, V. E., Slynko, E. I.
The purpose of this study was to investigate the magnetotransport properties of the Ge(0.743)Pb(0.183)Mn(0.074)Te mixed crystal. The results of magnetization measurements indicated that the compound is a spin-glass-like diluted magnetic semiconductor
Externí odkaz:
http://arxiv.org/abs/1406.5294
Autor:
Kilanski, L., Górska, M., Szymczak, R., Dobrowolski, W., Podgórni, A., Avdonin, A., Domukhovski, V., Slynko, V. E., Slynko, E. I.
Magnetic and transport properties of Ge(1-x-y)Mn(x)Eu(y)Te crystals with chemical compositions 0.041 < x < 0.092 and 0.010 < y < 0.043 are studied. Ferromagnetic order is observed at 150 < T < 160 K. Aggregation of magnetic ions into clusters is foun
Externí odkaz:
http://arxiv.org/abs/1406.5289
Autor:
Kilanski, L., Rauch, C., Tuomisto, F., Podgorni, A., Dynowska, E., Dobrowolski, W., Fedorchenko, I. V., Marenkin, S. F.
Positron annihilation spectroscopy is used to study point defects in Zn/1-x/Mn/x/GeAs/2/ crystals with low Mn content 0 < x < 0.042 with disordered zincblende and chalcopyrite structure. The role of negatively charged vacancies and non-open-volume de
Externí odkaz:
http://arxiv.org/abs/1404.1179
Autor:
Kilanski, L., Górska, M., Dynowska, E., Podgórni, A., Avdonin, A., Dobrowolski, W., Fedorchenko, I. V., Marenkin, S. F.
Publikováno v:
J. Appl. Phys. 115, 133917 (2014)
We present the studies of structural, electrical, and magnetic properties of bulk Cd$_{1\textrm{-}x}$Mn$_{x}$GeAs$_{2}$ crystals with low Mn content, $x$, varying from 0 to 0.037. The studied samples have excellent crystallographic quality indicated
Externí odkaz:
http://arxiv.org/abs/1401.4037