Abstract
Bit patterned media exhibits great potential in satisfying the increasing demand for higher information storage density, but the present media fabrication technique is complicated. Here, a 2D magnetic mesocrystal with monodisperse CoFe<sub>2</sub>O<sub>4</sub> (CFO) nanocrystals is fabricated through a combination of nanoseeds layer growth and oxides self-assembly method. The monodisperse CFO nanomagnets protrude from the substrate surface with perfect crystal facets, specific crystallographic orientation, and are fully relaxed. Systematic magnetic characterizations, such as dynamic cantilever magnetometry for single CFO nanocrystal, magnetic force microscopy, and superconducting quantum interference device magnetometry for large area, reveal the novel tilted magnetic anisotropy and the switchable single domain state. This work provides a new way to fabricate bit patterned media with controlled material structure simply by a nanoseeds-mediated self-assembly method. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
| Original language | English |
|---|---|
| Article number | 1800997 |
| Journal | Advanced Materials Interfaces |
| Volume | 5 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 9 Nov 2018 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- 2D magnetic CoFe2O4 mesocrystals
- bit patterned media
- nanoseeds-mediated self-assembly
- single domain state
- tilted magnetic anisotropy