|
|||||
|
|
Magnetic properties and microstructure of FePt–SiO2 nanocomposite films fabricated by nanocluster beam technology |
|
| Authors: | CY Tan YZ Zhou JS Chen SY Chow GM Chow |
| Affiliation: | aData Storage Institute, Singapore 117608, Republic of Singapore bDepartment of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Republic of Singapore cInstitute of Materials Research and Engineering, Singapore 117602, Republic of Singapore |
| Abstract: | Nanocluster beam technology combined with conventional sputtering was used to fabricate FePt–SiO2 nanocomposite films in this present work. The post-deposition annealing affected the final particle size and size distribution of FePt nanoclusters. The effects of both volume fraction of SiO2 matrix and annealing temperature on magnetic and microstructural properties were studied. Partial ordering, grain growth and agglomeration of FePt particles in FePt–SiO2 nanocomposite films occurred during annealing. A higher volume fraction of SiO2 matrix was effective in suppressing diffusion of atoms and magnetic exchange coupling of FePt grains. Excessive SiO2 however resulted in a lower degree of FePt ordering and thus lower coercivity. |
| Keywords: | Magnetic properties and measurements Magnetic structures Sputtering Nanostructures FePt SiO2 Magnetic Cluster beam |
| 本文献已被 ScienceDirect 等数据库收录！ | |