Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

Specific Heat and Magnetism of LuFe_6Al_6

100%
Svoboda P., Andreev A., Šantavá E., Šebek J.
Acta Physica Polonica A
|
2008
|
vol. 113
|
issue 1
307-310
EN
Here we present the results of the zero-field specific heat study of the LuFe_6Al_6 single crystal. The specific heat data were analyzed as a sum of the phonon, electronic, and magnetic contributions, respectively. The analysis of the phonon part involves three acoustic and 36 optical branches, respectively, all of them corrected for the anharmonicity. The magnetic part of the specific heat was obtained by subtracting the electronic and the phonon part from the experimental specific heat and the magnetic entropy was calculated.
2
Content available remote

Specific Heat Study of PrNi_4Si

100%
Procházková K., Daniš S., Svoboda P.
Acta Physica Polonica A
|
2008
|
vol. 113
|
issue 1
299-302
EN
Here we present the results of pilot polycrystalline study of PrNi_4Si. The X-ray study did not confirm the expected CaCu_5-type structure. Instead of this, the orthorhombic structure with the space group Cmmm was found. The zero-field specific heat was measured in the temperature range 2-300 K. The data were analyzed using the sum of the phonon, electronic, and magnetic contributions to specific heat, respectively. The magnetic part of the specific heat can be well described using the Schottky formula for the 9 crystal-field singlet levels of the pz3 H4 ground-state multiplet of the Pr^{3+} ion.
3
Content available remote

Effect of Si Substitution and Annealing on Magnetocaloric Properties in TbCo_2

76%
Janatova M., Poltierova Vejpravova J., Javorsky P., Prokleska J., Svoboda P., Danis S.
Acta Physica Polonica A
|
2008
|
vol. 113
|
issue 1
311-314
EN
We report on magnetocaloric properties of the as-cast and annealed TbCo_2 with partial substitution of cobalt by silicon. The samples were characterized by powder X-ray diffraction and investigated by heat capacity measurements (8-300 K, in fields 0 T and 1 T). TbCo_2 undergoes a second-order type phase transition at T_C = 240 K, from paramagnetic to ferrimagnetic state;similar behavior was revealed in the Si-doped compounds. The temperature dependence of magnetic entropy and the corresponding magnetocaloric effect were derived for all studied samples. The influence of the heat treatment and Si doping on magnetocaloric properties will be discussed in context of the analogue case Er(Co_{1-x}Si_x)_2.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.