Autor: Penc, B. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Neutron diffraction studies of PrNi₅Sn
Autorzy:: Penc, B.
Hoser, A.
Szytuła, A.
Powiązania:: https://bibliotekanauki.pl/articles/1075355.pdf
Data publikacji:: 2016-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.20.En
Opis:: Powder neutron diffraction measurements of PrNi₅Sn performed in the temperature range 1.5-76 K indicate that the compound crystallizes in a hexagonal CeNi₅Sn-type crystal structure (space group P6₃/mmc). The a lattice parameter and the unit cell volume V increase while the c lattice parameter does not change with increasing temperature. No long range magnetic ordering was detected down to 1.5 K, in contradiction to bulk magnetometric results.
Źródło:: Acta Physica Polonica A; 2016, 129, 3; 313-314
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Size effects in antiferromagnetic NiO nanoparticles
Autorzy:: Baran, S.
Hoser, A.
Penc, B.
Szytuła, A.
Powiązania:: https://bibliotekanauki.pl/articles/1075485.pdf
Data publikacji:: 2016-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.30.Cr
75.47.Lx
75.50.Ee
Opis:: X-ray and neutron diffraction as well as magnetometric methods were used in order to investigate crystal and magnetic structure together with magnetic properties of nickel oxide NiO obtained from thermal decomposition of Ni(OH)₂. It has been found that crystal unit cell volume and crystal unit cell deformation parameter decrease with increasing decomposition temperature T_{d} while grain size increases. The results of magnetization, magnetic susceptibility and neutron diffraction measurements reveal a formation of antiferromagnetic order with uncompensated magnetic moment below the Néel temperature. Magnetization together with coercive field decreases with increasing T_{d}. The neutron diffractogram of sample obtained at 240°C indicates broadening of both the peaks of nuclear and magnetic origin. The magnetic ordering may be described by a propagation vector k=[½,½,½].
Źródło:: Acta Physica Polonica A; 2016, 129, 1; 35-39
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Evidence of the non-magnetic ordering in TmRu₂Si₂ at low temperatures
Autorzy:: Szytuła, A.
Hoser, A.
Baran, S.
Penc, B.
Powiązania:: https://bibliotekanauki.pl/articles/1058840.pdf
Data publikacji:: 2016-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.20.En
Opis:: The neutron powder diffraction measurements of the TmRu₂Si₂ compound in the temperature range 0.47-2.5 K have been performed. The obtained results confirm that this compound in low temperature has a tetragonal ThCr₂Si₂-type crystal structure (space group I4/mmm). The long range magnetic ordering was not detected up to 0.47 K.
Źródło:: Acta Physica Polonica A; 2016, 130, 6; 1371-1372
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Neutron Diffraction Studies of Nanoparticle $DyMnO_3$ Compound
Autorzy:: Szytuła, A.
Penc, B.
Dyakonov, V.
Baran, S.
Hoser, A.
Powiązania:: https://bibliotekanauki.pl/articles/1206328.pdf
Data publikacji:: 2014-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.25.-j
75.50.Ee
Opis:: The neutron powder diffraction (NPD) measurements of the nano-size $DyMnO_3$ manganite have been performed. The obtained results indicate that this compound crystallizes in the orthorhombic crystal structure described by the space group Pnma. The Mn and Dy moments order antiferromagnetically at different temperatures and form modulated magnetic structure described by the propagation vector k=($k_x$, 0, 0) with the different values of $k_x$ component for the Mn and Dy sublattices. The values of $k_x$ component for Mn sublattice increase with decreasing of the temperature and are smaller that in bulk compound. The wide Bragg peaks related to the Dy sublattice suggest that the magnetic order in this sublattice has the cluster-like character.
Źródło:: Acta Physica Polonica A; 2014, 125, 1; 65-66
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Neutron Diffraction Studies of $NdNi_5Sn$ Compound
Autorzy:: Penc, B.
Baran, S.
Hoser, A.
Romaka, L.
Szytuła, A.
Powiązania:: https://bibliotekanauki.pl/articles/1205240.pdf
Data publikacji:: 2014-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.F-
75.20.En
Opis:: The neutron powder diffraction measurements of the $NdNi_5Sn$ compound have been performed. The obtained results indicate that this compound crystallizes in a hexagonal $CeNi_5Sn$-type crystal structure described by the space group $P6_3$/mmc. The parameters of the crystal structure at 1.55 and 14.8 K are determined. In contradiction to the magnetic data the long-range magnetic ordering was not detected up to 1.55 K.
Źródło:: Acta Physica Polonica A; 2014, 126, 3; 772-773
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Influence of the Grain Size on the Magnetic Properties of $TbMnO_{3}$
Autorzy:: Bażela, W.
Dul, M.
Dyakonov, V.
Gondek, Ł.
Hoser, A.
Hoffmann, J.
Penc, B.
Szytuła, A.
Kravchenko, Z.
Nosalev, I.
Zarzycki, A.
Powiązania:: https://bibliotekanauki.pl/articles/1431251.pdf
Data publikacji:: 2012-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.Cp
61.05.F-
61.05.J-
75.30.kz
75.50.Ee
75.50.-y
Opis:: The magnetic properties including magnetic structure of poly and nano samples of $TbMnO_{3}$ are determined. All the samples investigated are antiferromagnets. In these samples the Mn ad Tb moments order antiferromagnetically at different temperatures and form modulated magnetic structure described by the propagation vector k=($k_{x}$,0,0) with different value of $k_{x}$ for the Mn and Tb sublattices. Comparison of the data for poly and nano samples indicates the decrease of the moment and increase of the $k_{x}$ component of propagation vector in the nano specimens. The wide Bragg peak related to the Tb sublattice suggests that the magnetic order has the claster-like character. The magnetic moments value in both sublattices is smaller, whereas the $k_{x}$ values are larger for nano samples.
Źródło:: Acta Physica Polonica A; 2012, 121, 4; 785-788
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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