Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx
The small nonmonotonic changes of the lattice parameters upon the substitution of Mn for Fe in Ce₂Fe₁₇ lead to significant changes of the magnetic properties. In order to determine the role of the volume, we made ac susceptibility and thermal expansion measurements on the polycrystalline compounds C...
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| Datum: | 2001 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2001
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| Zitieren: | Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx / O. Prokhnenko , Z. Arnold, J. Kamarad, I. Medvedeva , A. Kuchin // Физика низких температур. — 2001. — Т. 27, № 4. — С. 375-378. — Бібліогр.: 8 назв. — англ. |
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Prokhnenko, O. Arnold, Z. Kamarad, J. Medvedeva, I. Kuchin, A. 2018-02-04T16:11:05Z 2018-02-04T16:11:05Z 2001 Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx / O. Prokhnenko , Z. Arnold, J. Kamarad, I. Medvedeva , A. Kuchin // Физика низких температур. — 2001. — Т. 27, № 4. — С. 375-378. — Бібліогр.: 8 назв. — англ. 0132-6414 PACS: 75.30.Kz, 75.40.Cx, 65.70.+y https://nasplib.isofts.kiev.ua/handle/123456789/130013 The small nonmonotonic changes of the lattice parameters upon the substitution of Mn for Fe in Ce₂Fe₁₇ lead to significant changes of the magnetic properties. In order to determine the role of the volume, we made ac susceptibility and thermal expansion measurements on the polycrystalline compounds Ce₂Fe₁₆.₆₅Mn₀.₃₅ and Ce₂Fe₁₆Mn₁ under hydrostatic pressure up to 10 kbar in the temperature range 10-300 K. The substitution of Mn for Fe leads to significant narrowing of the range of stability of the low-temperature ferromagnetic phase characterized by ΘT =48 K (x=0.35) in comparison with binary Ce₂Fe₁₇, where ΘT =94 K. Applying a relatively small pressure of 1.5 kbar leads to suppression of both the ferromagnetic order and large positive spontaneous volume magnetostriction in Ce₂Fe₁₆.₅Mn₀.₃₅. The pressure effect on ΘT is significant, d ΘT / dp=-30 K/kbar. The effect of pressure on the Néel temperature is moderate and slightly increases with increasing Mn content (dTN / dp= -2.2 K/kbar for Ce₂Fe₁₆.₆₅Mn₀.₃₅). No ferromagnetic order was observed in Ce₂Fe₁₆Mn₁ at ambient pressure, but an unexpected reentering increase of the ac susceptibility was detected at pressures higher than 1.5 kbar below 50 K. It indicates the existence of a pressure-induced ferromagnetic phase at low temperature. The results show not only a strong correlation between the magnetic properties and the lattice volume but also a significant role of the Mn content. Remove selected We acknowledge the support from Projects No. 106/99/0183 GA CR, A1010018 GA AS CR and from the Russian Foundation for Basic Research, Project No. 98-02-16165. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx |
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Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx Prokhnenko, O. Arnold, Z. Kamarad, J. Medvedeva, I. Kuchin, A. Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников |
| title_short |
Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx |
| title_full |
Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx |
| title_fullStr |
Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx |
| title_full_unstemmed |
Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx |
| title_sort |
magnetovolume anomalies in ce₂fe₁₇₋xmnx |
| author |
Prokhnenko, O. Arnold, Z. Kamarad, J. Medvedeva, I. Kuchin, A. |
| author_facet |
Prokhnenko, O. Arnold, Z. Kamarad, J. Medvedeva, I. Kuchin, A. |
| topic |
Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников |
| topic_facet |
Низкотемпеpатуpная магнитостpикция магнетиков и свеpхпpоводников |
| publishDate |
2001 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
The small nonmonotonic changes of the lattice parameters upon the substitution of Mn for Fe in Ce₂Fe₁₇ lead to significant changes of the magnetic properties. In order to determine the role of the volume, we made ac susceptibility and thermal expansion measurements on the polycrystalline compounds Ce₂Fe₁₆.₆₅Mn₀.₃₅ and Ce₂Fe₁₆Mn₁ under hydrostatic pressure up to 10 kbar in the temperature range 10-300 K. The substitution of Mn for Fe leads to significant narrowing of the range of stability of the low-temperature ferromagnetic phase characterized by ΘT =48 K (x=0.35) in comparison with binary Ce₂Fe₁₇, where ΘT =94 K. Applying a relatively small pressure of 1.5 kbar leads to suppression of both the ferromagnetic order and large positive spontaneous volume magnetostriction in Ce₂Fe₁₆.₅Mn₀.₃₅. The pressure effect on ΘT is significant, d ΘT / dp=-30 K/kbar. The effect of pressure on the Néel temperature is moderate and slightly increases with increasing Mn content (dTN / dp= -2.2 K/kbar for Ce₂Fe₁₆.₆₅Mn₀.₃₅). No ferromagnetic order was observed in Ce₂Fe₁₆Mn₁ at ambient pressure, but an unexpected reentering increase of the ac susceptibility was detected at pressures higher than 1.5 kbar below 50 K. It indicates the existence of a pressure-induced ferromagnetic phase at low temperature. The results show not only a strong correlation between the magnetic properties and the lattice volume but also a significant role of the Mn content.
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| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/130013 |
| citation_txt |
Magnetovolume anomalies in Ce₂Fe₁₇₋xMnx / O. Prokhnenko , Z. Arnold, J. Kamarad, I. Medvedeva , A. Kuchin // Физика низких температур. — 2001. — Т. 27, № 4. — С. 375-378. — Бібліогр.: 8 назв. — англ. |
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| first_indexed |
2025-12-07T18:03:44Z |
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2025-12-07T18:03:44Z |
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1850873609802743808 |