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Interplay between inter- and intraparticle interactions in bi-magnetic core/shell nanoparticlesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 апреля 2022 г.
- Авторы: Omelyanchik A., Villa S., Vasilakaki M., Singh G., Ferretti A.M., Ponti A., Canepa F., Margaris G., Trohidou K.N., Peddis D.
- Журнал: Nanoscale Advances
- Том: 3
- Номер: 24
- Год издания: 2021
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 6912
- Последняя страница: 6924
- DOI: 10.1039/d1na00312g
- Аннотация: The synthesis strategy and magnetic characterisation of two systems consisting of nanoparticles with core/shell morphology are presented: an assembly of hard/soft nanoparticles with cores consisting of magnetically hard cobalt ferrite covered by a magnetically soft nickel ferrite shell, and the inverse system of almost the same size and shape. We have successfully designed these nanoparticle systems by gradually varying the magnetic anisotropy resulting in this way in the modulation of the magnetic dipolar interactions between particles. Both nanoparticle systems exhibit high saturation magnetisation and display superparamagnetic behaviour at room temperature. We have shown strong exchange coupling at the core/shell interface of these nanoparticles systems which was also confirmed by mesoscopic modelling. Our results demonstrate the possibility of modulating magnetic anisotropy not only by chemical composition but also by adopting the proper nano-architecture.
- Добавил в систему: Омельянчик Александр Сергеевич