Perpendicular magnetic anisotropy in Co–Pt granular multilayers
Magnetization hysteresis curves have been measured on Co granular multilayers, (Al₂O₃/Co/Pt)N (N = 1 and
 25), with the applied magnetic field parallel and perpendicular to the substrate plane. In all samples perpendicular
 magnetic anisotropy was observed. For Co particles with aver...
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| Опубліковано в: : | Физика низких температур |
|---|---|
| Дата: | 2012 |
| Автори: | , , , , , , , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/117613 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Perpendicular magnetic anisotropy in Co–Pt granular
 multilayers / J. Bartolomé, A.I. Figueroa, L.M. García, F. Bartolomé, L. Ruiz, J.M. González-Calbet, F. Petroff, C. Deranlot, F. Wilhelm, A. Rogalev, N. Brookes // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1053-1057. — Бібліогр.: 15 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862673452690833408 |
|---|---|
| author | Bartolomé, J. Figueroa, A.I. García, L.M. Bartolomé, F. Ruiz, L. González-Calbet, J.M. Petroff, F. Deranlot, C. Wilhelm, F. Rogalev, A. Brookes, N. |
| author_facet | Bartolomé, J. Figueroa, A.I. García, L.M. Bartolomé, F. Ruiz, L. González-Calbet, J.M. Petroff, F. Deranlot, C. Wilhelm, F. Rogalev, A. Brookes, N. |
| citation_txt | Perpendicular magnetic anisotropy in Co–Pt granular
 multilayers / J. Bartolomé, A.I. Figueroa, L.M. García, F. Bartolomé, L. Ruiz, J.M. González-Calbet, F. Petroff, C. Deranlot, F. Wilhelm, A. Rogalev, N. Brookes // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1053-1057. — Бібліогр.: 15 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | Magnetization hysteresis curves have been measured on Co granular multilayers, (Al₂O₃/Co/Pt)N (N = 1 and
25), with the applied magnetic field parallel and perpendicular to the substrate plane. In all samples perpendicular
magnetic anisotropy was observed. For Co particles with average diameter 3 nm, the coercive field at low
temperature is μ₀HC = 0.5 T. HC decreases for increasing temperature and disappears at ≈200 K. A soft magnetic
component is also present in all samples up to the freezing temperature Tf = 365 K. Co and Pt XMCD measurements
at the L2,3 edges were performed, yielding to the orbital mL and spin mS contributions to the total magnetic
moment of the system. These results, in addition to XANES ones, indicate the presence of CoxPt₁₋x alloy. Particles
conformed of CoPt alloy, embedded in Pt and coupled magnetically by dipolar or RKKY interaction, may
explain the phenomenology observed in these systems.
|
| first_indexed | 2025-12-07T15:38:27Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117613 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T15:38:27Z |
| publishDate | 2012 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Bartolomé, J. Figueroa, A.I. García, L.M. Bartolomé, F. Ruiz, L. González-Calbet, J.M. Petroff, F. Deranlot, C. Wilhelm, F. Rogalev, A. Brookes, N. 2017-05-25T17:02:13Z 2017-05-25T17:02:13Z 2012 Perpendicular magnetic anisotropy in Co–Pt granular
 multilayers / J. Bartolomé, A.I. Figueroa, L.M. García, F. Bartolomé, L. Ruiz, J.M. González-Calbet, F. Petroff, C. Deranlot, F. Wilhelm, A. Rogalev, N. Brookes // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1053-1057. — Бібліогр.: 15 назв. — англ. 0132-6414 PACS: 75.30.–m, 75.70.–i https://nasplib.isofts.kiev.ua/handle/123456789/117613 Magnetization hysteresis curves have been measured on Co granular multilayers, (Al₂O₃/Co/Pt)N (N = 1 and
 25), with the applied magnetic field parallel and perpendicular to the substrate plane. In all samples perpendicular
 magnetic anisotropy was observed. For Co particles with average diameter 3 nm, the coercive field at low
 temperature is μ₀HC = 0.5 T. HC decreases for increasing temperature and disappears at ≈200 K. A soft magnetic
 component is also present in all samples up to the freezing temperature Tf = 365 K. Co and Pt XMCD measurements
 at the L2,3 edges were performed, yielding to the orbital mL and spin mS contributions to the total magnetic
 moment of the system. These results, in addition to XANES ones, indicate the presence of CoxPt₁₋x alloy. Particles
 conformed of CoPt alloy, embedded in Pt and coupled magnetically by dipolar or RKKY interaction, may
 explain the phenomenology observed in these systems. This work was supported by the MECOM under Grant
 MAT11/23791 and Project IMANA from the DGA, in
 Spain. A.I.F. acknowledges a CSIC JAE2008-Predoc grant.
 The experiment HE3136 at the ESRF is acknowledged. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур К 80-летию Виктора Валентиновича Еременко Perpendicular magnetic anisotropy in Co–Pt granular multilayers Article published earlier |
| spellingShingle | Perpendicular magnetic anisotropy in Co–Pt granular multilayers Bartolomé, J. Figueroa, A.I. García, L.M. Bartolomé, F. Ruiz, L. González-Calbet, J.M. Petroff, F. Deranlot, C. Wilhelm, F. Rogalev, A. Brookes, N. К 80-летию Виктора Валентиновича Еременко |
| title | Perpendicular magnetic anisotropy in Co–Pt granular multilayers |
| title_full | Perpendicular magnetic anisotropy in Co–Pt granular multilayers |
| title_fullStr | Perpendicular magnetic anisotropy in Co–Pt granular multilayers |
| title_full_unstemmed | Perpendicular magnetic anisotropy in Co–Pt granular multilayers |
| title_short | Perpendicular magnetic anisotropy in Co–Pt granular multilayers |
| title_sort | perpendicular magnetic anisotropy in co–pt granular multilayers |
| topic | К 80-летию Виктора Валентиновича Еременко |
| topic_facet | К 80-летию Виктора Валентиновича Еременко |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117613 |
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