Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds
The influence of Ag⁺ ions and Mn non-stoichiometry on the magnetic properties and magnetocaloric effect in the La₀.₉–xAgxMn₁.₁O₃ compounds has been studied. The Ag⁺ ions content substituting for trivalent lanthanum ions was varied from x = 0.05 to 0.3. Magnetic measurements have been performed over...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2017 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds / E. Zubov, A. Pashchenko, N. Nedelko, I. Radelytskiy, K. Dyakonov, A. Krzyżewski, A. Ślawska-Waniewska, V. Dyakonov, H. Szymczak // Физика низких температур. — 2017. — Т. 43, № 10. — С. 1493-1499. — Бібліогр.: 28 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862621294730674176 |
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| author | Zubov, E. Pashchenko, A. Nedelko, N. Radelytskiy, I. Dyakonov, K. Krzyżewski, A. Ślawska-Waniewska, A. Dyakonov, V. Szymczak, H. |
| author_facet | Zubov, E. Pashchenko, A. Nedelko, N. Radelytskiy, I. Dyakonov, K. Krzyżewski, A. Ślawska-Waniewska, A. Dyakonov, V. Szymczak, H. |
| citation_txt | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds / E. Zubov, A. Pashchenko, N. Nedelko, I. Radelytskiy, K. Dyakonov, A. Krzyżewski, A. Ślawska-Waniewska, V. Dyakonov, H. Szymczak // Физика низких температур. — 2017. — Т. 43, № 10. — С. 1493-1499. — Бібліогр.: 28 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | The influence of Ag⁺ ions and Mn non-stoichiometry on the magnetic properties and magnetocaloric effect in the La₀.₉–xAgxMn₁.₁O₃ compounds has been studied. The Ag⁺ ions content substituting for trivalent lanthanum ions was varied from x = 0.05 to 0.3. Magnetic measurements have been performed over a wide temperature (350–5 K) and magnetic field (up to 5 T) ranges. All the manganites studied show the ferromagnetic-like ordering with a first order magnetic phase transition. The magnetic entropy changes were evaluated from the isothermal curves of magnetization versus an applied magnetic field using both the thermodynamic Maxwell relation (MR) and calculation based on the Landau theory of phase transitions. The largest values of the magnetocaloric effect as well as the relative cooling power among the studied manganites are equal to 5.76 J/(kg K) and 185 J/kg, respectively, for La₀.₉–xAgxMn₁.₁O₃ in the magnetic field change of 5 T near the Curie temperature of TC = 271 K. A good correlation between the magnetization, colossal magnetoresistance and magnetic entropy changes as a function of Ag concentration in the La₀.₉–xAgxMn₁.₁O₃ manganites was established.
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| first_indexed | 2025-12-07T13:24:04Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-175254 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T13:24:04Z |
| publishDate | 2017 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Zubov, E. Pashchenko, A. Nedelko, N. Radelytskiy, I. Dyakonov, K. Krzyżewski, A. Ślawska-Waniewska, A. Dyakonov, V. Szymczak, H. 2021-01-31T16:22:04Z 2021-01-31T16:22:04Z 2017 Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds / E. Zubov, A. Pashchenko, N. Nedelko, I. Radelytskiy, K. Dyakonov, A. Krzyżewski, A. Ślawska-Waniewska, V. Dyakonov, H. Szymczak // Физика низких температур. — 2017. — Т. 43, № 10. — С. 1493-1499. — Бібліогр.: 28 назв. — англ. 0132-6414 PACS: 65.40.gd, 75.30.Sg, 75.47.Np, 75.47.Lx, 75.60.Ej https://nasplib.isofts.kiev.ua/handle/123456789/175254 The influence of Ag⁺ ions and Mn non-stoichiometry on the magnetic properties and magnetocaloric effect in the La₀.₉–xAgxMn₁.₁O₃ compounds has been studied. The Ag⁺ ions content substituting for trivalent lanthanum ions was varied from x = 0.05 to 0.3. Magnetic measurements have been performed over a wide temperature (350–5 K) and magnetic field (up to 5 T) ranges. All the manganites studied show the ferromagnetic-like ordering with a first order magnetic phase transition. The magnetic entropy changes were evaluated from the isothermal curves of magnetization versus an applied magnetic field using both the thermodynamic Maxwell relation (MR) and calculation based on the Landau theory of phase transitions. The largest values of the magnetocaloric effect as well as the relative cooling power among the studied manganites are equal to 5.76 J/(kg K) and 185 J/kg, respectively, for La₀.₉–xAgxMn₁.₁O₃ in the magnetic field change of 5 T near the Curie temperature of TC = 271 K. A good correlation between the magnetization, colossal magnetoresistance and magnetic entropy changes as a function of Ag concentration in the La₀.₉–xAgxMn₁.₁O₃ manganites was established. This work was performed in the laboratories co-financed by the ERDF Project No. POIG.02.02.00-00-025/09. This study was partially supported by the National Center for Research and Development, research Project No. PBS2/A5/36/2013.
 The study was carried out within the Fundamental Research Programme funded by the MES of Ukraine (Project No. 0117U002360). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкотемпеpатуpный магнетизм Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds Article published earlier |
| spellingShingle | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds Zubov, E. Pashchenko, A. Nedelko, N. Radelytskiy, I. Dyakonov, K. Krzyżewski, A. Ślawska-Waniewska, A. Dyakonov, V. Szymczak, H. Низкотемпеpатуpный магнетизм |
| title | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds |
| title_full | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds |
| title_fullStr | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds |
| title_full_unstemmed | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds |
| title_short | Magnetic and magnetocaloric properties of the La₀.₉–xAgxMn₁.₁O₃ compounds |
| title_sort | magnetic and magnetocaloric properties of the la₀.₉–xagxmn₁.₁o₃ compounds |
| topic | Низкотемпеpатуpный магнетизм |
| topic_facet | Низкотемпеpатуpный магнетизм |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/175254 |
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