Existence of cryogenic magnetic entropy change in Gd based nanoparticles
Magnetic nanoparticles with average diameter of 5–7 nm were prepared by nanocasting method inside of the pores of periodic silica matrix of SBA15 type. The uniform size of the pores limited the particles' growth what resulted in formation of nanocomposite consisting of monodisperse nanoparticle...
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| Datum: | 2017 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2017
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| Schriftenreihe: | Физика низких температур |
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/129502 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Existence of cryogenic magnetic entropy change in Gd based nanoparticles / A. Zeleňáková, P. Hrubovčák, A. Berkutova, O. Kapusta, V. Zeleňák // Физика низких температур. — 2017. — Т. 43, № 6. — С. 867-870. — Бібліогр.: 18 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | Magnetic nanoparticles with average diameter of 5–7 nm were prepared by nanocasting method inside of the pores of periodic silica matrix of SBA15 type. The uniform size of the pores limited the particles' growth what resulted in formation of nanocomposite consisting of monodisperse nanoparticles of Gd₂O₃ embedded in amorphous silica matrix. Magnetic properties of the material were examined in magnetic fields up to 5 T and in temperature range 2–52 K. The magnetic entropy change of 29 J/kg K was observed at 2 K for field variation 5 T in the investigated nanocomposite what suggests this material could be feasible for cryomagnetic refrigeration applications. |
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