Szczegóły publikacji
Opis bibliograficzny
Nanoscale distribution of magnetic anisotropies in bimagnetic soft core-hard shell $MnFe_{2}O_{4}@CoFe_{2}O_{4}$ nanoparticles / Niéli Daffé, Marcin SIKORA, [et al.] // Advanced Materials Interfaces [Dokument elektroniczny]. - Czasopismo elektroniczne ; ISSN 2196-7350. — 2017 — vol. 4 iss. 22, s. 1700599-1–1700599-9. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 1700599-8–1700599-9. — Publikacja dostępna online od: 2017-09-13
Autorzy (14)
- Daffé Niéli
- AGHSikora Marcin
- Rovezzi Mauro
- Bouldi Nadejda
- Gavrilov Véronica
- Neveu Sophie
- Choueikani Fadi
- Ohresser Philippe
- Dupuis Vincent
- Taverna Dario
- Gloter Alexandre
- Arrio Marie-Anne
- Sainctavit Philippe
- Juhin Amélie
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 111831 |
|---|---|
| Data dodania do BaDAP | 2018-02-08 |
| DOI | 10.1002/admi.201700599 |
| Rok publikacji | 2017 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Advanced Materials Interfaces |
Abstract
The nanoscale distribution of magnetic anisotropies is measured in core@shell MnFe2O4@CoFe2O4 7.0 nm particles using a combination of element selective magnetic spectroscopies with different probing depths. As this picture is not accessible by any other technique, emergent magnetic properties are revealed. The coercive field is not constant in a whole nanospinel. The very thin (0.5 nm) CoFe2O4 hard shell imposes a strong magnetic anisotropy to the otherwise very soft MnFe2O4 core: a large gradient in coercivity is measured inside the MnFe2O4 core with lower values close to the interface region, while the inner core presents a substantial coercive field (0.54 T) and a very high remnant magnetization (90% of the magnetization at saturation).